10 Best Marine Toilets 2025 in the United States

The SANIFLO Saniaccess 2 + Toilet Bowl Elongated + Toilet Tank Bundle is a comprehensive package designed to meet the needs of those upgrading their bathroom, especially in residential settings. One of its standout features is its dual-purpose functionality, allowing it to discharge gray water from a sink, which adds versatility to its use.

The product is relatively large, with dimensions of 27"D x 17.75"W x 31"H, so it may not be suitable for smaller marine environments but fits well in a medium to large-sized space. The plastic material ensures durability and reduces the risk of corrosion in a moist environment. The flushing mechanism includes a macerating pump with a 0.5 HP motor, which promises efficient waste processing but might be slightly noisy with a noise level of ≤ 53 dBA.

The ease of maintenance is a significant plus, thanks to the two easy-access service panels that simplify electrical and mechanical troubleshooting. The installation process is straightforward due to the rear outlet design, but the total weight of 111 pounds might require two people to handle. The four-year warranty offers peace of mind and indicates the manufacturer’s confidence in product longevity. While the product is well-rated (4.2 out of 5 stars from 373 reviews), it may not be the best fit for small or highly compact spaces. Users looking for a reliable, multi-functional, and easy-to-maintain marine toilet will find this bundle an excellent choice.

The SANIFLO Sanibest Pro bundle combines an elongated toilet bowl with a powerful macerator pump system designed for residential use but with features that can appeal to marine settings needing reliable waste management. It uses a gravity flush mechanism supported by a pump that can handle wastewater not only from the toilet but also from sinks, showers, and even washing machines, making it versatile for boats with complex plumbing.

The unit is floor-mounted and quite large (almost 29 inches on each side and 31 inches tall) and heavy at 125 pounds, which might be a challenge in tight or weight-sensitive marine spaces. The system’s discharge rate and shut-off head indicate strong performance in moving waste uphill or over distance, which is valuable on boats. Maintenance is simplified thanks to an easy-access panel on the pump, allowing for quick repairs or checks without full disassembly. The product also comes with an extended 4-year warranty, providing peace of mind.

The size and weight make it less ideal for smaller vessels, and since it’s geared toward residential settings, installation in a marine environment may require adaptations. This setup suits users who need a robust, multi-source waste solution and are comfortable with the larger footprint, such as liveaboard boats or larger yachts where space and weight are less restricted.

The Saniflo Sanicompact is a one-piece, floor-mounted macerating toilet designed primarily for small spaces like half bathrooms or basements. Its compact size (21.5" deep, 14.5" wide, and 18.5" high) makes it a good fit where space is tight. The built-in pump and macerating system allow the toilet to handle black and gray water efficiently, pushing waste up to 9 feet vertically or up to 120 feet horizontally, which is ideal for installations far from the main drain.

It uses a dual-flush system that saves water, which is helpful if you want to reduce water usage. The toilet operates quietly at 53 dBa, so it won’t cause much noise disruption. Installation is relatively straightforward since it’s an all-in-one unit with floor mount, suitable for DIY or professional setup. However, it doesn’t have a traditional holding tank since it macerates and pumps waste directly into your plumbing, so it’s not the best choice if you need a large holding tank capacity. Maintenance is generally easy, but like all macerating toilets, occasional servicing of the pump may be needed.

The toilet’s sturdy plastic seat and white finish fit most bathrooms, and it comes with a 4-year limited warranty, adding peace of mind. This model is a solid option if you need a space-saving, water-efficient toilet that can be installed away from normal plumbing lines. However, it might not suit those who prefer a standard gravity-flush toilet or require a large holding tank.