Review on AirForce Holding Tank Vent Filter by Jason Cavett

Terrible breather filter. I bought two of these so I have a spare on the boat. I installed the first one a month ago and it was fine for about a week then I smelled it again (never overfilled the tank or hit the filter) so I replaced it with the second one again. The second literally did nothing, my storage tank was about 1/4 full and the smell was awful. Bought a Dometic factory replacement for a lot of money and haven't had any problems for the past month. Those things are useless if you buy one to save money, do yourself a favor and don't change the filter at all because those suck.