Voker™ Holding Tank Vent Filter Intended use: When a toilet is flushed on a boat with a holding tank, matter is added to the tank, and air is expelled through the tank vent. To neutralize foul-smelling air emitted from the holding tank, install a Voker™ Holding Tank Vent Filter.
The filter can be mounted in any position and fits Sanigard©, Dometic©, and Trionic© 5/8" vent hose filters. Mounting the filter close to the thru hull vent is preffered to avoid possible damage caused by overfilling the holding tank.