10 Best Cassette Toilets For Recreational Vehicles 2026 in the United States

The Kohree 5.8 Gal Portable Toilet for Adults is a convenient option for RV users, campers, and those needing a portable toilet solution. With a waste tank capacity of 5.8 gallons, it reduces the frequency of emptying, which is a plus for prolonged outdoor activities. The flush type utilizes a compressed air pressure system, ensuring efficient cleaning without the hassle of stains being left in corners.

The bowl material is high-density polyethylene (HDPE), which, combined with a polypropylene seat, ensures durability and strength, capable of supporting up to 440 lbs (200 kg). This makes it suitable for a wide range of users. Installation is straightforward due to its floor-mounted design, and portability is enhanced by its compact dimensions and carry handle, allowing it to be easily transported and assembled anywhere.

The ease of emptying is addressed with detachable waste tanks and a splash-free rotating pouring spout, ensuring a mess-free experience. However, there are a few considerations to keep in mind. Despite its large capacity, the toilet's size might be bulky for very compact RV spaces. The requirement to clean the waste tank frequently for hygiene purposes could be seen as a downside for some users. Additionally, while the design is leak-proof and odorless, ensuring these features work effectively requires proper maintenance.

In summary, the Kohree 5.8 Gal Portable Toilet is a robust and practical choice for those in need of a portable, easy-to-use toilet with a good balance of capacity and durability.

The Porta Potti White from Thetford Corp is a versatile and award-winning portable toilet suitable for various settings including RVs, boats, and camping. With a fresh water tank capacity of 4 gallons and a waste water tank capacity of 5.5 gallons, it offers a decent storage for both clean and waste water. The modern and sleek design includes a comfortable seat height and an enlarged bowl size, which can enhance the user experience.

Additionally, the battery-powered flush system is a convenient feature that adds to the product's ease of use. The toilet is made of plastic, making it lightweight (10 pounds) and easy to carry, thanks to its ergonomic handle. However, the plastic material might not be as durable as other higher-end materials. The Porta Potti Curve is designed to be odorless and leak-proof due to its sealed valve, and it includes an integrated toilet paper holder and tank level indicator for added convenience.

The rotating pour-out spout makes emptying the waste tank less messy, which is a significant advantage. Installation is straightforward with an optional hold-down kit that secures the toilet to the floor, ensuring stability during travel. On the downside, some users might find the 5.5 gallons waste capacity limiting for extended trips without frequent emptying. Despite these minor drawbacks, the Porta Potti Curve remains a practical and user-friendly option for those in need of a reliable portable toilet for their recreational vehicle or other outdoor activities.

The Thetford Porta Potti 565E Curve is a well-sized cassette toilet designed for recreational vehicles that need a reliable and fairly large waste capacity. Its waste tank holds 21 liters, which suits longer trips or users looking to empty less frequently. The flush-water tank is 15 liters, paired with an electric pump flush system, making it more convenient and hygienic compared to manual pumps. Both tanks have level indicators, so you can easily see when it’s time to refill or empty, which adds user-friendly convenience.

The toilet is made from durable plastic with an oval bowl shape, which is common and comfortable for most users. At around 12.8 pounds, it’s a bit heavier than some portable models, reflecting its luxury size and electric components, so while it is portable, it’s more suited for semi-permanent RV installations rather than frequent moving. Installation is wall-mounted, which is good for saving space and stability but means it’s less flexible if you want a fully portable option. One downside is the need for 4 AAA batteries to power the electric flush, which adds some ongoing maintenance.

The plastic build is practical and easy to clean, though it doesn’t feel as premium as ceramic options. This model is a good fit for RV users wanting a larger capacity, easy flushing, and effective indicator features, especially if their trips justify a slightly heavier, electric flush toilet.