Guardian Carbon Filter Frames are an improved and more economical way to provide gas and odor filtration. This 20-gauge galvanized metal frame is sized to fit the Phoenix Mini-Guardian. It measures 16" x 16" x 2".
The carbon and potassium permanganate media needed to fill the frames is available in 30-pound buckets (sold separately).
Replacement foam liners and honeycomb inserts are also available (sold separately).
There are several advantages to using carbon filter frames: