Permanent metal frames designed to contain replaceable filter media pads for use in standard commercial service.

Permanent metal frames designed to contain replaceable filter media pads for use in heavy duty industrial service.

Universal Holding Frames come in several standard sizes that can be used individually or may be combined to fit virtually any size filter bank.  AAF latches are available to hold a variety of filters and filter combinations, are replaceable, and specifically designed for upstream or downstream servicing.

The AstroFrame filter holding frame is specifically designed for high efficiency built-up AstroCel I HEPA filter banks. Each frame is seam welded to deliver maximum enclosure integrity.

The patented Bevel Seal frame is a factory welded, extruded aluminum frame developed specifically for HEPA filter installations. The modular frames can be quickly bolted together in any combination.