Holding tank filter vent 309311001
Most effective odor control - absorbs holding tank odors for an entire season, and keeps your boat fresh and pleasant.
Installs easily between Holding Tank and Through-Hull Vent. Filter Cartridge lasts the entire season and is easily replaced for a fresh start.
Kit includes fitting for popular vent hose ID sizes: 5/8", 3/4", 1", and 1-1/2" (16 mm, 19 mm, 25 mm, and 38 mm)
* NOT FOR USE with Chlorine Based Treatment Systems.