21_1/2x23_3/8x1 Exact MERV 7 Plus Carbon AC Furnace Filters 6 Pack AIR FILTER BOXES Deep dish bowl included

Deep dish bowl included

Weight          22

Minimum Order Quantity on Freight Shipments for Reservoirs

We use the exact particle size required for the best air flo

21_1/2x23_3/8x1 Exact MERV 7 Plus Carbon AC Furnace Filters 6 Pack AIR FILTER BOXES Deep dish bowl includedNordic Pure Custom MERV 7 Plus Carbon air filters are made based on the actual measurements so be sure to measure your current filter to get the EXACT dimensions before ordering. As with all Nordic Pure filters, the effective life of your filter depends on the environment in which you live. We recommend changing 1 and 2 filters every 30 90 days. Our 4, 5 and 6 inch thick filters could last up to 6 months. EXACT MEASUREMENT: Furnace and air condition