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WaterFurnace Geothermal 28x36x2 MERV 10 Airguard Air Filter 4 Pack Contractor this high efficiency final stage filter removes DFS FUJ SF0022x2 AC16DO16KIT BNDLKIT LZAS this high efficiency final stage filter removes fine airborne contaminants that can compromise air quality and safety zero bypass perimeter seal when installed — preventing contaminated air from passing around the filter media In most situations This Airguard filter is manufactured for WaterFurnace and is considered by WaterFurnace to be the OEM replacement MERV 10 air filter for all their Geothermal Comfort Systems that use a 28 x 36 x 2 pre filter
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