OdorHogActivated Carbon in Mesh Replacement Bag, Fits 4-Inch OdorHog

No more smell from sewer

These charcoal bags work perfectly with our sewer vent. It prevents odors from drifting down from the vent on the roof. They're easy to install and well worth the money. We've been using these for about 20 years.

These really helped the sewer smell we had when we ran out washer. 2nd time ordering

I have a berm home, low roof, was getting sewer ordors from my vent pipe. This simple system totally eliminated sewer smells.

Second purchase. Works well will buy again