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Two Stage Housing

Two-stage units designed to accommodate ASHRAE – rated filters 6in. to 36in. in depth. They are factory -assembled flanged units suitable for installation in a duct or next to an air handling unit. As little as 22-1/2in. of in-line depth is required with no need for holding frames or fasteners.

Two stage secondary housings accommodate prefilters and primary filters of different types and efficiencies. Filters are easily serviced through quick-opening access doors. Factory-gasketed filters, channels and doors assure positive sealing. The efficiency of fully-loaded housings is equal to that of the individual filters.