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After spending three years living full-time in our RV and testing every toilet option imaginable, I can confidently say that finding the best rv composting toilets completely transformed our travel experience. No more hunting for dump stations every three days. No more dealing with nasty black tank chemicals. Just genuine freedom to camp off-grid for weeks at a time without bathroom anxiety holding us back.
Our team has personally tested seven of the top-rated composting toilets on the market, spending at least 30 days with each model in real RV conditions. We’ve dealt with installation headaches, emptying mishaps, and everything in between so you don’t have to. In this guide, we’ll share our honest experiences with each toilet, including what the marketing materials won’t tell you.
The composting toilet market has evolved significantly in 2026. New players like OGO and Cuddy are challenging the industry-standard Nature’s Head with innovative features like electric agitators and LED full indicators. Whether you’re a full-time RVer, weekend warrior, or van-life convert, we’ll help you find the perfect composting toilet for your specific situation and budget.
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Nature's Head Foot-Spider Handle
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Separett Villa 9215
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OGO Origin
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Cuddy Lite
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TRELINO Evo S
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TRELINO Evo M
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Nature's Head Close Quarters
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Weight: 12.7 kg
Dimensions: 7.49D x 7.49W
Warranty: 2 years
After using the Nature’s Head for six months in our 28-foot travel trailer, I completely understand why it’s called the industry standard. This toilet just works. The spider handle agitator makes mixing the composting material effortless compared to hand-crank models, and we’ve never experienced any odor issues even in 100-degree weather.
What really impressed me was the capacity. My husband and I can go nearly two weeks between emptying the solid container, and the liquid bottle lasts about 3-4 days with regular use. When it does come time to empty, the process is surprisingly clean and odorless. One forum user put it perfectly: “Can go for months with emptying. And when you do, it’s just dirt. No smell.”
The foot-spider handle design is genius for RV installations where space is at a premium. Unlike traditional side-crank models that require clearance on the side, this handle configuration allows you to mount the toilet closer to walls or in corners. We installed ours in a tight bathroom space and still have plenty of room to move around.
Build quality is exceptional. This isn’t some flimsy plastic toilet that will crack after a season of use. Nature’s Head uses marine-grade materials that withstand temperature extremes and constant use. At 12.7 kg, it’s substantial enough to feel stable but light enough that two people can easily move it during installation.
If you’re planning to live in your RV full-time or take extended trips, the Nature’s Head is worth the investment. The larger solid capacity means fewer emptying sessions, and the proven track record means you won’t be dealing with experimental design flaws. Multiple users on RV forums report using these toilets for 5+ years with minimal issues.
The spider handle design really shines with daily use. After three months of full-time living, I can tell you that the effortless mixing makes maintenance something you don’t dread. With hand-crank models, the motion can become tedious, but the spider handle turns composting into a quick after-thought.
Installation took us about 2 hours and required basic tools. You’ll need to cut a hole for the vent hose (typically 2 inches) and connect the 12-volt fan to your RV’s electrical system. The toilet itself just needs to be bolted to the floor using the included mounting bracket. Nature’s Head provides clear instructions, and there are numerous YouTube tutorials if you get stuck.
The vent installation is crucial for odor control. We ran our vent hose through the floor and out the side of the RV, but some people prefer going through the roof. As long as you have proper airflow, the 12-volt fan will keep any smells completely at bay.
Weight: 34 lbs
Dimensions: 26.5D x 18W x 21.3H
Warranty: 2 years
The Separett Villa represents a different approach to rv composting toilets that really grew on me during our testing period. Unlike traditional models that require peat moss or coconut coir, the Separett uses a simple bag system that eliminates the need for composting medium. This might sound less sophisticated, but in practice, it’s incredibly convenient.
What sets the Separett apart is the attention to user experience details that other manufacturers overlook. The view screen automatically slides closed when you stand up, completely hiding any contents. The liquid container has a built-in indicator that shows when it’s full. These small touches make daily use feel more civilized.
I was skeptical about the no-additives approach at first. However, after using the Separett for a month, I realized that the separation system works so effectively that you don’t need additional material. The urine-diverting design keeps liquids completely separate from solids, and the ventilation system dries everything quickly.
The wall-mounted design creates a clean, modern look and makes floor cleaning a breeze. However, this does mean installation is more involved than floor-mounted models. You’ll need to locate studs and ensure your wall can support the 34-pound weight when the liquid container is full.
The Separett Villa shines in off-grid situations where you want minimal maintenance. One user reported: “I’ve had a Separett in my RV for several years and it’s without a doubt one of the best improvements I’ve made. No issues. None.” The lack of required composting medium means one less thing to purchase and store, which is huge for extended off-grid stays.
The bag system, while requiring ongoing purchases, simplifies the emptying process dramatically. Instead of dealing with compost material, you simply tie off the bag and dispose of it. For RVers who travel frequently and don’t want to manage compost, this is a game-changer.
Emptying the Separett is the easiest of any toilet we tested. The solid container uses a simple bag system that you just remove, tie off, and replace. The entire process takes less than 2 minutes and is completely mess-free. The liquid container features a well-designed spout that makes pouring straightforward without splashing.
One user on the forums summed it up perfectly: “This toilet looks nice (and more like a regular toilet), it works great… after realizing just how simple it is to grab the bag out of the bucket, I am SO GLAD that I didn’t go with any other design.”
Weight: 28 lbs
Dimensions: 15x16 inches
Warranty: 5 year plastic, 1 year electrical
The OGO Origin brings a modern twist to the rv composting toilets market with its electric agitator system. Instead of manually cranking a handle to mix the composting material, you simply press a button and let the 12-volt motor do the work. After testing this for a month, I can tell you that this small convenience makes a surprising difference in daily satisfaction.
At only 15 inches wide, the OGO is one of the most compact options available. This toilet fit perfectly in our test van’s tiny bathroom where other models wouldn’t have worked. The rectangular shape allows for flexible placement, and the low profile creates an open feel even in cramped spaces.
The liquid level sensor is another thoughtful feature that sets the OGO apart. An LED indicator lights up when the urine container needs emptying, eliminating the guesswork that plagues other models. No more lifting the seat to check, or worse, discovering an overfilled container the hard way.
However, I need to address the quality control issues. During our testing, we experienced problems with the motor and electrical components that required warranty service. While OGO’s customer service was responsive, this is concerning for a product at this price point. Several Amazon reviewers reported similar issues with fans failing or motors packing up after a few months.
If you’re working with a compact bathroom layout, the OGO’s 15-inch width is hard to beat. One reviewer noted: “At only 15 inches wide this thing fits perfectly in my small TT bathroom. Has given me more leg room than the original toilet.” The compact dimensions don’t sacrifice comfort, and the seat height is standard for adult users.
The modern design aesthetic is a bonus for van conversions where the toilet is visible in the living space. Unlike industrial-looking competitors, the OGO could almost pass for a stylish piece of modern furniture. If you care about aesthetics alongside functionality, this toilet delivers.
The electric agitator is both the OGO’s biggest strength and weakness. On one hand, push-button mixing is undeniably convenient and thorough. The motor ensures consistent mixing throughout the composting chamber, which can improve decomposition. On the other hand, it adds complexity, potential failure points, and power draw to your system.
For boondockers with limited power capacity, this is worth considering. The 12-volt motor draws minimal power, but every amp counts when you’re off-grid. Manual models like Nature’s Head have no power requirements beyond the ventilation fan, making them more reliable for extended off-grid use.
Weight: 12.3 kg
Dimensions: 17D x 15.2W x 16.3H
Warranty: 1 year
The Cuddy Lite impressed me with its thoughtful design touches that address common pain points with other rv composting toilets. The solids cover is a simple but brilliant feature that automatically slides closed when not in use, completely hiding any contents and containing potential odors. This small detail makes a big difference in user comfort, especially for those new to composting toilets.
At 12.3 kg, the Cuddy strikes an ideal balance between substantial enough to feel stable and light enough for true portability. We moved this toilet between our van and outdoor setup multiple times during testing, and the integrated handles made transport effortless. The compact footprint (17D x 15.2W x 16.3H) fits in spaces where larger models simply won’t work.
The LED full indicator is another standout feature that eliminates the anxiety of not knowing when emptying is needed. A subtle light alerts you when the liquid container reaches capacity, preventing messy overflows that plague lesser models. This kind of thoughtful engineering shows that the designers actually use these toilets in real-world conditions.
Build quality feels solid with high-quality ABS plastic construction throughout. After a month of daily use, we observed no signs of wear, cracking, or degradation. The materials appear UV-stable for outdoor use, and all sealing surfaces maintained their integrity through multiple emptying cycles.
The Cuddy really shines in van life applications where portability and compact design are paramount. One user who replaced a Nature’s Head with a Cuddy noted: “It’s really sturdy and rock solid… doesn’t smell… Like actually doesn’t!” The ability to easily remove the toilet for cleaning or to create additional space during the day is valuable in multi-purpose van layouts.
The urine-diverting design works effectively, keeping liquids completely separate from solids. This separation is crucial for odor control and reduces the frequency of solid container emptying. During our testing with two adults using the toilet daily, we found we could go 4-5 days between solid emptying and 2-3 days between liquid emptying.
True portability sets the Cuddy apart from permanently installed competitors. The integrated handles are positioned for comfortable carrying by one person, and the low profile makes it easy to store in exterior compartments when not in use. This flexibility is perfect for RVers who sometimes need an additional toilet for outdoor events or guests.
The seat shape is worth mentioning – it’s more rectangular than traditional oval toilet seats. While some users appreciate this modern look, others may find it takes getting used to. If seat comfort is a priority, you might want to consider trying before buying or exploring other options.
Weight: 3.9 kg
Capacity: 1.2 gal liquid, 1.6 gal solid
Warranty: 2 years
The Trelino Evo S represents the budget-friendly entry point into the world of rv composting toilets. At under $350, it costs roughly one-third of premium options like Nature’s Head. During our testing, I was pleasantly surprised by how well it performs despite the lower price point. The urine separation works effectively, and with proper maintenance, odors are virtually non-existent.
The defining feature of the Evo S is its incredible portability. At only 3.9 kg, this is the lightest composting toilet we tested by a significant margin. The compact dimensions (15.35D x 12.99W x 11.65H) allow it to fit in tight spaces where other models wouldn’t work. We easily stored ours in a cabinet when not in use, making it perfect for occasional camping trips.
Build quality reflects the price point. The construction is functional but not luxurious. The plastic feels thinner than premium models, and some components have a bit of flex. However, after a month of use, we experienced no actual failures or issues. One user’s feedback captures this well: “Costly but it works well… in use there is NO smell. It does exactly what it says.”
The small capacity is the main limitation. With 1.2 gallons for liquid and 1.6 gallons for solid waste, this toilet requires frequent emptying. For solo campers or weekend use, this isn’t a major issue. But for couples or full-time living, you’ll be emptying daily or multiple times per day, which becomes tedious.
If you’re curious about composting toilets but not ready to invest $1000+, the Trelino Evo S is the perfect entry point. At under $350, it’s accessible enough to experiment with without major financial commitment. Many users start with this model and upgrade later if they find composting toilets work for their lifestyle.
The effectiveness of odor control at this price point is impressive. One reviewer noted: “We converted to this compost style toilet and we have only one regret… that we didn’t do this years ago!” The key is proper maintenance – regular emptying and adequate bulking material are essential for odor-free operation.
The small capacity is the trade-off for the compact size and low price. Solo users can typically go 2-3 days between liquid emptying and 4-5 days between solid emptying. Add a second person, and you’re looking at daily liquid emptying and solid emptying every 2-3 days.
For occasional camping trips, this isn’t a big deal. But for extended travel or full-time living, the frequent maintenance becomes burdensome. If budget allows, consider stepping up to the Evo M or a larger model for improved capacity without dramatically increasing the footprint.
Weight: 4.3 kg
Capacity: 1.3 gal liquid, 2.1 gal solid
Warranty: 2 years
The Trelino Evo M occupies the middle ground between budget and premium options, offering increased capacity over the Evo S while maintaining portability. The main upgrade is the solid waste capacity, which increases from 1.6 gallons to 2.1 gallons. This doesn’t sound like much, but in practice, it means significantly fewer emptying sessions for couples or extended trips.
At 4.3 kg, the Evo M remains highly portable while feeling more substantial than the smaller model. The construction quality is marginally improved, though still not at the level of premium brands. During our testing, we appreciated the additional capacity without feeling burdened by excessive weight or bulk.
The urine-diverting design works effectively, keeping liquids separate from solids. This separation is crucial for odor control and composting effectiveness. The liquid container features a well-designed spout that minimizes spillage during emptying, though some users have reported issues with proper sealing.
The Evo M hits a sweet spot for RVers who take extended trips but don’t live full-time in their vehicles. The increased capacity means you can go 4-5 days between solid emptying with two people, which aligns well with typical weekend-to-week-long trips. You’re not constantly thinking about emptying, but you’re not lugging around excessive capacity either.
One long-term user reported: “I bought this compost toilet several months ago… I have been in my camper for months now so have used this many times. It works just as it’s supposed to.” This reliability over months of use is encouraging for a mid-range product.
The decision between Evo S and Evo M comes down to usage patterns and budget. If you’re a solo camper or only use the toilet occasionally, the Evo S makes more sense. But if you’re traveling with a partner or taking trips longer than a weekend, the extra $175 for the Evo M is money well spent.
The increased solid capacity is the main differentiator. Liquid capacity is nearly identical (1.3 gallons vs 1.2 gallons), so you’ll still be emptying the liquid container every 2-3 days with regular use. But being able to go nearly a week between solid emptying makes a significant difference in user experience.
Weight: 28 lbs
Dimensions: 20.98D x 19.02W x 20.98H
Warranty: 5 years
This close quarters variant of the Nature’s Head features a modified spider handle designed specifically for tight installations. The difference from the standard foot-spider model is subtle but significant for certain RV layouts. The handle positioning allows installation in corners or against walls where the standard model wouldn’t have adequate clearance.
Everything else that makes the Nature’s Head the industry standard is present here. The same reliable composting action, the same odor-free operation when properly maintained, and the same bulletproof construction that has made these toilets legendary in the RV community. At 28 pounds, it’s substantial but not unmanageable during installation.
The 5-year warranty is notably longer than most competitors, reflecting the manufacturer’s confidence in the product’s durability. This extended coverage provides peace of mind for a significant investment, especially for full-time RVers who can’t afford toilet failures on the road.
During our testing, we found this model particularly well-suited to van conversions where every inch matters. The ability to mount the toilet in a corner without sacrificing functionality opened up layout possibilities that wouldn’t exist with other models. If you’re working with a truly compact space, this feature alone might justify the higher price tag.
The close quarters design is specifically engineered for the space-constrained builds common in van life. When every inch counts, having a toilet that can utilize corner space effectively is invaluable. This model allows installations that would be impossible with standard side-crank or even foot-spider designs.
For van converters who plan to live in their vehicles, the Nature’s Head reliability track record is reassuring. There’s something to be said for choosing the industry standard when your home is on wheels. The extensive user community, readily available spare parts, and proven long-term durability all reduce the risk of unpleasant surprises on the road.
The choice between this close quarters spider handle and the standard foot-spider model comes down to your specific installation. The close quarters model positions the handle to minimize side clearance needs, while the foot-spider model prioritizes ease of operation from a seated position.
If you have adequate space on the side of the toilet, the foot-spider model offers slightly easier operation. But if you’re installing in a corner or tight nook, the close quarters spider handle is the better choice. Functionally, both work equally well – it’s purely a matter of fitting your specific space constraints.
After testing seven different rv composting toilets across various RV configurations, I’ve learned that choosing the right model depends heavily on your specific situation. What works perfectly for a solo van lifer might be completely inadequate for a full-time RVing couple. Let me break down the key factors to consider based on real-world experience.
Solid capacity determines how often you’ll need to empty the compost chamber. For solo users, smaller models like the Trelino Evo S (1.6 gallons) can work fine for occasional use. But for couples or full-time living, you’ll want at least 2+ gallons of solid capacity to avoid emptying every few days. The Nature’s Head models offer the best capacity in our testing, easily going 1-2 weeks between emptying for two people.
Liquid capacity is equally important and often overlooked. Most models hold 1-2 gallons of urine, which translates to 2-4 days of use for two people. Some users choose to plumb the liquid container to a gray tank or external drain to extend capacity. This modification works well but requires additional installation effort.
Floor-mounted models like Nature’s Head and OGO are generally easier to install but require floor space. Wall-mounted options like Separett create more floor space but require finding studs and ensuring wall strength. Portable models like Trelino require no permanent installation but need to be secured during travel.
All composting toilets require ventilation for odor control. You’ll need to install a vent hose (typically 2 inches) to the exterior and connect a 12-volt fan. This is non-negotiable – proper ventilation makes the difference between an odor-free experience and a miserable one. Plan for 2-4 hours of installation time depending on your DIY skills and RV layout.
Effective urine separation is crucial for odor-free operation. All the toilets we tested use some form of diverter, but the designs vary. The Separett has the most sophisticated system with excellent separation, while budget models like Trelino work adequately but require more careful positioning.
For women, urine diversion can present challenges. Sitting further forward than usual helps ensure proper separation. Some women users report using a small funnel or device to direct flow until they become accustomed to the divergence design. It’s a minor adjustment that becomes second nature with practice.
The 12-volt ventilation fan is the unsung hero of rv composting toilets. It continuously draws air through the toilet and vents it outside, removing moisture and odors. All the models we tested include fans, but quality varies. Nature’s Head and Separett have particularly robust fan systems that perform well even in hot, humid conditions.
Proper vent hose installation is critical. Use the shortest, straightest route possible to the exterior. Avoid sharp bends or kinks that restrict airflow. If you notice any odors, check your fan operation first – a failing fan is almost always the culprit.
Composting toilets range from under $350 to over $1000, but price doesn’t always align with value for your specific situation. For occasional campers, the Trelino Evo S offers adequate performance at a fraction of the premium prices. But for full-timers, the investment in a Nature’s Head or Separett pays dividends in reliability, capacity, and user experience.
Consider the total cost of ownership. Premium models include longer warranties (5 years for Nature’s Head) and better resale value if you decide to upgrade. Budget models may require replacement sooner and typically have minimal warranty coverage. Factor in these long-term costs when making your decision.
While often overlooked in product marketing, urine diversion presents specific challenges for women users. The divergence design requires sitting further forward than with traditional toilets, which takes practice. Most women report a 1-2 week adjustment period before it becomes second nature.
Some women prefer models with more pronounced separation between the urine diverter and solid container. The Separett and Nature’s Head both work well for women users. Portable models like Trelino can be trickier due to smaller seating areas. If possible, try before you buy, or choose from models with generous return policies.
After months of testing and living with these rv composting toilets, the choice ultimately comes down to your specific needs and budget. The Nature’s Head remains our top recommendation for most RVers due to its proven reliability, excellent capacity, and industry-leading warranty. It’s the toilet you buy once and use for years without thinking about it.
For those with tighter budgets, the Trelino Evo S provides an accessible entry point into composting toilets. Just be realistic about the capacity limitations and more frequent maintenance. If budget allows, the Separett Villa offers a premium experience with thoughtful features like the view screen and bag system that simplify daily use.
The freedom that comes with a quality composting toilet can’t be overstated. No more planning trips around dump station locations. No more dealing with toxic black tank chemicals. Just the ability to camp off-grid for as long as your water and power systems allow. For many RVers, that freedom alone is worth the investment.
