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Rigid-Air extended media surface rigid filters are designed for use in most commercial or industrial HVAC systems where medium to high efficiency filtration is required.
They feature a wide selection of media backed with expanded metal and pleated material. The pleats are held in place by rigid pleat separators, available in either plastic or metal styles on 12 inch depth filters. 6 inch depth filters feature rugged fiberboard separators. Rigid-Air is available in two media types: lofted fiberglass and micro-fine synthetic with average efficiency ranges of 50-55%, 60-65%, 80-85% and 90-95% per ASHRAE Standard 52.1 and MERV 10-15 per ASHRAE Standard 52.2.
These filters are especially suitable for variable air volume systems. Operating face velocity ranges are from 0 to 375 fpm for 6 inch deep filters, and from 0 to 675 fpm for 12 inch deep filters. Two frame styles are available: a single header model and a box type without header. Rigid-Air filters are UL 900 Class 2 listed.
Rigid-Air filters may be installed in Holding Frames, Framing Modules, Sureseal Side Access Housings or in similar existing hardware.If the filter is to be installed so that it protrudes upstream of the holding frame, the box style filter is required.