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The AIR FLOW PRODUCTS FB03INS000172624 is a furnace filter box insulation panel designed to line the interior of a filter box assembly in a forced-air heating or cooling system. Measuring 17.5 inches by 26.44 inches by 24 inches, this insulation fits within the filter box housing to reduce heat loss, limit condensation on cabinet surfaces, and dampen airborne noise generated at the air handler. HVAC technicians and sheet metal contractors install this component during new construction or as a replacement when existing insulation has deteriorated or been damaged during service.
This insulation panel is suited for residential and light commercial forced-air systems where a filter box or filter cabinet is installed inline with the air handler or furnace. It is typically installed upstream or downstream of the blower section, inside the filter box enclosure. The precise dimensions make it a direct fit for the corresponding AIR FLOW PRODUCTS filter box assembly, reducing field cutting and minimizing installation time.
Designed as an OEM-style replacement insulation panel for AIR FLOW PRODUCTS furnace filter box assemblies requiring a 17.5 x 26.44 x 24 inch insulation liner.
Installation should be performed by a qualified HVAC technician or sheet metal contractor. Before servicing the filter box, shut down the air handler or furnace at the disconnect switch and confirm the system is de-energized. Ensure the insulation panel is seated flush against all interior cabinet surfaces with no gaps that could allow air bypass. Follow all applicable local mechanical codes and manufacturer guidelines when reassembling the cabinet.
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