AC Infinity Inline Filter Box with MERV 13 Filter, Whole House HVAC Filtration Kit, Fits Inline Duct Fans for Fresh Air Intake and Ventilation (10-Inch) | Whole House HVAC Filtration Kit, Fits 10-Inch Inline Duct Fans for Fresh Air Intake and Ventilation

Great add on to filter the air passing through!

This is a nice product, although at the end of the day it’s just a metal box with two holes, a door, and a filter slot. I bought two to use for my coffee roasting business and put them directly above my roasters with electrostatic filters to trap chaff and dust before the fan. My criticism of the product is that it has no mounting tabs, so I ended up having to get sheet metal screws and drill holes into the body of the filter box. It works but now my filter boxes have permanent holes, and I had to research, design, purchase, and implement my own mounting solution.

Like stated, it’s a nice filter holder. Built well. Down side is that ac infinity doesn’t sell a replacement filter that I know of. Had to measure out the one that came with the holder and get replacements from the hardware store.

MASTER BEDROOM HAD RETURN AIR FILTER 10 FEET UP WALL AND HAD TO DRAG LADDER IN HOUSE TO CHANGE FILTER. INSTALLED THIS IN FLEX DUCT AND NOW I JUST PULL DOWN LADDER AND WALK UP TO HOUSING AND CHANGE OUT.SUPER QUALITY

It's just a box with a filter inside, so I don't think this is really worth how much they're charging for it. But it works and there aren't really too many alternatives out there.