About This Precise Dimensions & High Efficiency: This 21 1/2x23 5/16x1 air filter (actual size: 21 1/2" x23 5/16" x3/4") boasts a MERV 13 rating, equivalent to MPR 1900 & FPR 10. As a top merv 13 21 1/2x23 5/16x1 option and 21 1/2x23 5/16x1 air filter merv 13, it delivers reliable performance for residential air systems. Wide Compatibility with Home Systems: Ideal as furnace filters 21 1/2x23 5/16x1 and hvac filter 21 1/2x23 5/16x1, it fits air conditioners, furnaces, HVAC units, air scrubbers, dehumidifiers, and house vents. A versatile choice for 21 1/2x23 5/16x 1 air filters for home and everyday air management needs. Easy Installation & Maintenance: Installing this air filter 21 1/2x23 5/16x1 is straightforward—simply slide it into place. For optimal use, replace every 60-90 days, or every 30 days during peak summer/winter. It’s a practical addition to air filters 21 1/2x23 5/16x1 and filters 21 1/2x23 5/16x1 collections for hassle-free upkeep. Perfect for AC & Furnace Setups: Works seamlessly as ac filter 21 1/2x23 5/16x1 and ac filters 21 1/2x23 5/16x1 for cooling systems, while also serving as 21 1/2x23 5/16air filter and 21 1/2x23 5/16x1 filter for furnaces. Its design ensures it integrates smoothly with various home air systems. 1-Month Service Period: This 21 1/2x23 5/16x1 air filter 6 pack compatible option comes with a 1-month service period. Whether used as filter 21 1/2x23 5/16x1 or 21 1/2x23 5/16x 1 air filter, it offers support to address issues, ensuring a satisfactory experience with your purchase. Overview Brand : Chenzhit Material : Paper Product Dimensions : 21.5"L x 23.3"W x 0.75"Th Compatible Devices : Air Cleaner, Air Conditioner, Furnace, Heat Pump UPC : 654403311500 Number of Items : 1 Manufacturer : Chenzhit Unit Count : 6.0 Count