21-7/8x25-3/8x2 Exact Filters Fiberglass MERV 1-4 (12 pack)

When your HVAC system calls for a 21-7/8 x 25-3/8 x 2″ filter and the standard aisle doesn't carry it, this Exact Filters® unit is cut to your exact 21-7/8 x 25-3/8 x 2″ spec — no shims, no gaps, no bypass air. A properly fitting filter seals against the housing, so all return air is forced through the media instead of leaking around the frame. This filter carries a MERV 1-4 rating, which places it at the economy end of the scale. It's designed to capture larger particles — lint, fibers, dust bunnies, and pollen — that would otherwise accumulate inside your blower cabinet and on your evaporator coil. Think of it as equipment protection first, with incidental dust capture as a secondary benefit. Specifications Nominal size: 21-7/8 x 25-3/8 x 2″ Actual dimensions: 21-7/8 x 25-3/8 x 1-3/4″ Efficiency rating: MERV 1-4 Quantity: 12 filters per carton Customers typically order a 21-7/8 x 25-3/8 x 2″ custom filter because their system is older, was built by a regional manufacturer, was retrofitted, or was framed on-site by an installer who didn't conform to a standard filter dimension. If that describes your situation, you're in the right place. Features Pleated construction (or fiberglass, depending on MERV tier) designed for balanced capture and airflow Cardboard frame with reinforced media for structural stability during handling and installation Replace approximately every 90 days in standard installations; shorter intervals in high-dust, smoky, or heavy-use environments Orientation arrow printed on the frame to ensure correct airflow direction at install