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

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

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.

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.

Good

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.

Purchased this in December 2015. I've had it installed a little over 2 years now. We had an awful time with sewer gas smell on cold mornings ever since having our sewer main replaced. This has made a huge improvement. I haven't changed the filter in 2 years, and it still seems to be working. The filter cartridge is tiny, and the activated carbon inside has to have long since stopped working. I think the device really only restricts air flow imho. That said, it does a great job.

This filter arrived late and missed the plumber who just came today after the window to return closed yesterday and it is not the piece that was described and doesn't fit my pipe. I'm so bummed, may I please return? Hello? Customer service?