This waste odor filter is designed to keep the air on your boat fresh, even when using the onboard toilet and holding tank. The filter installs inline on the vent hose that leads gases from the waste holding tank to the outside. As the gases pass through the filter, the activated carbon inside traps the molecules that cause bad smells, releasing cleaned air instead.
The filter’s design is compact (about 200 mm in length) and built from durable material that withstands harsh marine conditions and UV exposure. Installation is very straightforward: simply choose a convenient spot along the vent hose – typically at the highest point in the run – attach the appropriate rubber end fittings for your hose diameter (20 or 25 mm), and secure the filter with the provided bracket to a nearby surface. The filter begins working immediately with no power or special attention needed.
Over time (usually 1-2 boating seasons, depending on usage), the activated carbon’s ability to absorb odors will be exhausted. The filter can then be easily replaced with a new unit (or refilled with fresh carbon if the design allows).
Usage and Recommendations:
- Use Case: Suitable for any boat equipped with a marine toilet and holding tank – sailboats, motor yachts, catamarans. It’s indispensable for vessels that need to store waste water for extended periods.
- Installation Position: Mount the filter at the highest point of the vent hose. This ensures that no condensate or liquid reaches the filter, and it maximizes efficiency in capturing gases.
- Replacement: Monitor performance – if you begin to detect odors around the vent again, the filter is likely spent. Replacing it with a new one is quick (just undo the bracket and swap it out). It’s wise to keep a spare filter on hand, especially for long voyages or cruising in remote areas.
- Comfort & Courtesy: Using such a filter not only increases comfort for you and your crew/guests, but also minimizes unpleasant smells that could waft around the marina or your anchorage – a considerate touch for neighbors and the environment.




