Studor 20297 Maxi-Filtra Septic Tank Drain Vent Two-Way Active Carbon Filter, 3- or 4-Inch Connection

The vent pipe from our sewer system often ruined our back yard experience. Once this filter was installed, no more stinky smells! With the removal of the rubber section on the bottom, this was a perfect fit for our septic vent pipe and was easy to install. Works perfectly!

does exactly what the description says, no odor on hot days anymore.

It was fine and easy. We are fairly mechanical inclined. So no problems there. Does it’s job. But those not so adept could use directions either on or in the box.

This small, discreet yet very well designed product is a nose saver. We have a 39’ park model 5th wheel and put this in our main line clean out it made the biggest difference no more smells. If you own a bumper pull, gooseneck, or 5th wheel trailer and park it for the year hooked up or just glamping either way if there is a sewer clean out get this. The smell will be gone in an hour or 2, the only thing you will smell is what was lofting in the air before the install of this carbon filter. I honestly did not have high hopes for this but my expectations were exceeded with the quality and performance of this product.

Our vacation home has a septic lift station next to it - right near our deck. Sometimes the smell coming from the vent is just too much. We finally broke down and spent the $65 for this filter. Works as advertised. The smell is gone. Well worth the money.

Muy bien empacado, se ve de buena calidad y llegó muy rápido

I bought this for an aerated septic tank. There was no filter on the vent pipe, and I was tired of the smell. After only a week or two, I realized this filter was making absolutely no difference. The same sewer smell was back, and a sniff test proved that it was indeed coming straight from the filter.Yes, installation of the unit and cartridge was done perfectly. This product simply does not work at all. I sent it back for a refund, which Amazon honored.

Effective solution for septic system emissions, some jurisdictions require a carbon filter vent to treat noxious emissions from septic system, highly recommended, solved my emissions issues and it'll solve yours, easy to install, pricey but worth it.