After researching dozens of RV composting toilets, comparing manufacturer specifications, industry standards, and aggregated owner feedback, we selected the seven best models for different needs. Our evaluation focuses on real-world performance, durability, ease of use, and value. Whether you need a compact unit for a van or a high-capacity model for a family RV, this guide will help you choose the right one.
| Photo | Product | Score | Buy |
|---|---|---|---|
 |
Nature's Head Self-Contained Composting Toilet Best Overall Separate urine and solid compartments, 2.5 gallon solids tank |
9.0 | 🛒 Check Price |
|
🚗
|
Separette Villa 9215 AC/DC Composting Toilet Best for Off-Grid AC/DC powered mixing system, 6 gallon solids tank |
8.7 | 🛒 Check Price |
 |
Air Head Composting Toilet Best Compact Compact design, 1.8 gallon solids tank, separate urine diverter |
8.4 | 🛒 Check Price |
 |
Laveo Dry Flush Toilet Best for Ease of Use Dry flush system, uses proprietary cartridges, no water or chemicals |
8.1 | 🛒 Check Price |
 |
Sun-Mar GTG Portable Composting Toilet Best Portable Portable, 5 gallon capacity, electric fan optional |
7.8 | 🛒 Check Price |
|
🚗
|
Trelino L Classic Composting Toilet Best Design Separate urine and solids, 3.2 gallon solids tank, sleek design |
7.5 | 🛒 Check Price |
|
Boonedox Simple Nature Composting Toilet Best Budget Affordable, simple design, 5 gallon bucket system |
7.2 | 🛒 Check Price |
1. Nature's Head Self-Contained Composting Toilet: Best Overall
The Nature’s Head Self-Contained Composting Toilet is a top choice for RVers who prioritize odor control and durability. Based on owner feedback and the spec sheets, the separate urine and solid waste compartments significantly reduce smells and make emptying easier. The stainless steel hardware and heavy-duty plastic are built to last, and the included fan and vent kit ensure proper airflow. However, its premium construction comes at a higher cost, and the design may not fit in extremely tight spaces. Those on a tight budget or with very small RVs should consider other options.
In our evaluation, the Nature’s Head excels in performance and durability, but the value is lower due to its price. It is best for serious off-grid travelers who want a reliable, low-maintenance toilet that minimizes odor. If you have limited space or are new to composting toilets, you might find the larger footprint and learning curve challenging.
- Separate urine and solid waste compartments reduce odor and mess
- Stainless steel hardware and heavy-duty plastic construction
- Built-in fan and vent kit for odor control
Pros: Excellent odor control with separate compartments; Durable build quality with stainless steel hardware
Cons: Higher price point than many alternatives
2. Separette Villa 9215 AC/DC Composting Toilet: Best for Off-Grid
The Separette Villa 9215 is designed for off-grid use with its AC/DC powered mixing system. According to the manufacturer specifications and owner feedback, the large 6 gallon solids tank allows for longer intervals between emptying, which is a major convenience for extended trips. The electric mixer helps aerate solids, reducing odor and promoting decomposition. However, it requires a power source, which may be a limitation for some boondockers. The polyethylene construction is durable but not as heavy-duty as stainless steel alternatives.
We found the Separette to be a strong performer for those with access to power and a need for high capacity. It is less suitable for minimalist setups or those who prefer a completely manual system. The value is good for its features, but the dependency on electricity is a real weakness. Skip this if you want a fully passive, non-electric composting toilet.
- Electric mixing system with AC/DC power for remote locations
- Large 6 gallon solids capacity reduces frequency of emptying
- Durable polyethylene construction with UV protection
Pros: Large solids tank means less frequent emptying; Electric mixing reduces manual effort
Cons: Requires power source for mixing and fan
3. Air Head Composting Toilet: Best Compact
The Air Head Composting Toilet is a compact solution for vans and small RVs. Our research shows that its small footprint is a major advantage for space-constrained builds, and the separate urine diverter with stainless steel components helps control odor. However, the 1.8 gallon solids tank is significantly smaller than competitors, meaning more frequent emptying. Owner feedback indicates that for solo travelers or couples on short trips, this is manageable, but families will find it inconvenient.
In our evaluation, the Air Head scores well for ease of use and durability, but the value is lower due to the limited capacity. It is best for minimalist setups where space is critical. If you have a larger RV or plan extended off-grid stays, consider a model with a larger tank.
- Compact footprint ideal for small RVs and vans
- Separate urine diverter reduces odor
- Stainless steel urine diverter and vent fitting
Pros: Small size fits tight spaces; Good build quality with stainless steel parts
Cons: Small solids tank requires frequent emptying
4. Laveo Dry Flush Toilet: Best for Ease of Use
The Laveo Dry Flush Toilet offers a unique approach that is extremely easy to use. Based on the manufacturer specifications and owner feedback, it requires no water, chemicals, or composting medium, just a disposable cartridge that seals waste in a bag. This makes it nearly odorless and very clean to empty. However, the cartridges are an ongoing expense and are not environmentally friendly as they end up in landfills. The durability is also lower compared to traditional composting toilets, with plastic parts that may wear over time.
We found the Laveo to be a good option for those who prioritize convenience and are willing to pay for cartridges. It is not ideal for eco-conscious users or those on a tight budget. The value is decent for the ease of use, but the performance and durability are lacking. Skip this if you want a sustainable, long-term solution.
- No water, chemicals, or composting medium needed
- Simple dry flush mechanism with disposable cartridges
- Compact and lightweight design
Pros: Very easy to use and clean; No odor if cartridges are changed regularly
Cons: Ongoing cost of proprietary cartridges; Cartridges are not compostable and create waste
5. Sun-Mar GTG Portable Composting Toilet: Best Portable
The Sun-Mar GTG Portable Composting Toilet is designed for portability. According to the spec sheet, it has a 5 gallon capacity and can be used with an optional electric fan for better odor control. Owner feedback indicates that it works well for occasional use, but the plastic construction is less robust than fixed models. Without the fan, odor can become an issue, especially in warm weather. It is best for campers who need a temporary solution or want to move the toilet between vehicles.
In our evaluation, the Sun-Mar GTG scores lower in durability and ease of use due to its portable nature. The value is fair for its intended use, but it is not a long-term solution for full-time RV living. Those who want a permanent, high-quality composting toilet should look elsewhere.
- Lightweight and portable for camping or temporary use
- 5 gallon capacity for moderate use
- Can be used with or without electric fan
Pros: Easy to transport and store; Versatile for both RV and tent camping
Cons: Not as durable as permanent installations; Odor control is less effective without fan
6. Trelino L Classic Composting Toilet: Best Design
The Trelino L Classic stands out for its sleek, modern design. Based on owner feedback and the manufacturer specs, it features separate urine and solid compartments with a stirring handle for mixing. The design is a plus for those who want a toilet that looks good, but the 3.2 gallon solids tank is smaller than many alternatives, requiring more frequent emptying. The plastic construction is functional but not as durable as stainless steel options.
We found the Trelino to be a decent choice for design-conscious users with limited space. However, the durability and value are middling. It is best for small RVs or vans where aesthetics matter, but skip it if you need a high-capacity, rugged unit for heavy use.
- Modern aesthetic with clean lines
- Separate urine and solid compartments
- Includes stirring handle and vent hose
Pros: Attractive design fits modern interiors; Good odor separation
Cons: Smaller solids tank than some competitors; Plastic build feels less premium
7. Boonedox Simple Nature Composting Toilet: Best Budget
The Boonedox Simple Nature Composting Toilet is a budget-friendly option that uses a 5 gallon bucket system. According to owner feedback, it is easy to set up and includes a urine diverter and seat lid. However, the simplicity comes with trade-offs: odor control is not as good as more expensive models, and the plastic bucket may not be as durable. It is a good starter toilet for those on a tight budget or for occasional use.
In our evaluation, the Boonedox scores high on value but low on performance and durability. It is best for DIY enthusiasts or those who want to try composting toilets without a large investment. Skip this if you want a polished, long-lasting solution with excellent odor control.
- Low cost bucket-based composting system
- Includes urine diverter and lid with seat
- Easy to set up and maintain
Pros: Very affordable entry point; Simple and easy to understand
Cons: Less refined than purpose-built toilets; Odor control is less effective
Frequently Asked Questions
How does an RV composting toilet work?
An RV composting toilet separates liquid and solid waste. Solids fall into a vented container with a composting medium like coconut coir or peat moss. A fan (often battery or solar powered) draws air through the container, evaporating liquids and promoting aerobic decomposition. Urine is diverted to a separate container or drained. The result is a dry, odorless compost that can be emptied less frequently than a traditional black tank.
Do composting toilets smell?
When used correctly, composting toilets should have minimal odor. The key is proper ventilation and separation of liquids from solids. Most models include a fan that creates negative pressure, venting odors outside. Regular maintenance, such as adding carbon material and emptying the urine container, is essential. Owner feedback indicates that with good practices, odor is not a problem.
How often do you need to empty an RV composting toilet?
Emptying frequency depends on usage and tank size. For a solo traveler using a 2-3 gallon solids tank, emptying may be needed every 2-4 weeks. Larger tanks (5-6 gallons) can go 6-8 weeks for a couple. Urine containers typically need emptying every 2-4 days, depending on capacity. Always follow the manufacturer’s guidelines.
Can you use a composting toilet in cold weather?
Yes, but cold temperatures can slow the composting process. Most composting toilets work in freezing conditions, but the fan and mixing may be affected. Some models have heaters or insulation options. It is important to keep the toilet in a heated space or use antifreeze measures for the urine diverter. Owner feedback suggests that below freezing, the compost may freeze, but it still functions as a dry toilet.
Are RV composting toilets legal?
In most places, composting toilets are legal for RV use, but regulations vary. Some campgrounds and parks may require a holding tank or approved waste disposal system. It is best to check local regulations. Composting toilets are generally accepted for boondocking and off-grid use. The solid compost can be disposed of in trash or buried, while urine can be dumped at a dump station or diluted as fertilizer.
Our Verdict
After researching and comparing the top RV composting toilets, our top pick is the Nature’s Head Self-Contained Composting Toilet for its excellent odor control, durable construction, and overall performance. The runner-up is the Separette Villa 9215 for off-grid users who need a large capacity and electric mixing. Both offer reliable solutions for comfortable, eco-friendly RV living.
Last reviewed and spec-checked: May 13, 2026. We re-check our picks and listings periodically.
