Pick a Filter Retainer or Frame
How Retaining Frames Work
Type AH filter retainers are designed for flat or “V” bank arrangements and build up to any height or width by the progressive addition of retainers — the answer when a single filter can’t cover the opening.
DM1 & DM2 disposable media retaining frames provide a cost-effective 18-gauge galvanized steel frame that holds replaceable media — you replace the media, not the frame. Pair them with air filter accessories like spring clips and bail handles, or go custom for non-standard openings.
Frequently asked questions
What if no single filter fits my opening?
Build a filter bank — multiple filters in mountable retaining frames. See Type AH filter retainers.
What’s the difference between AH retainers and DM frames?
AH retainers hold filters in flat or V-bank arrangements; DM1 & DM2 frames hold disposable media pads in a reusable galvanized frame.