Wolverine Septic Vent Odor Filters Now with End of Service Life Indicator

The best activated septic carbon vent filter on the market just got better. Now, Simple Solutions Distributing's PVC filters shown below contain a built-in end-of-service-life indicator that will change color when the carbon is saturated and needs to be replaced. You no longer need to guess when to change the carbon to keep that nuisance septic odor at bay.