WaterFurnace Geothermal 28x36x2 MERV 10 Airguard Air Filter - 4 Pack MERV 7 The PAC-SJ41TM-E multi-function casement and KCH-102714016-CS12 Need Air Purifying Filter Frames?:Without Frames 5 20 for transport Microparticle Filters

The PAC-SJ41TM-E multi-function casement and PAC-SH59KF-E high-efficiency filter element together upgrade your system to capture particles as small as 1 micrometer — eliminating 95% of airborne irritants at the unit level

For instructions on changing your furnace's air filter

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Guaranteed to fit the following indoor unit models: 40MAQB09

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WaterFurnace Geothermal 28x36x2 MERV 10 Airguard Air Filter 4 Pack MERV 7 The PAC SJ41TM E multi function casement and KCH 102714016 CS12 Need Air Purifying Filter Frames?:Without Frames 5 20 for transport Microparticle Filters The PAC SJ41TM E multi function casement and PAC SH59KF E high efficiency filter element together upgrade your system to capture particles as small as 1 micrometer — eliminating 95% of airborne irritants at the unit level For instructions on changing your furnace's air filter