This MERV 11 Media Filter is compatible with Lennox X0581. Fits Models: BMAC-12C, BMAC12C, BMAC12 Size: 16x25x3" (Actual size: 15-3/4x24-1/8x3")(X0581F) (3 Pack Special)
The Magnet logo on this page signifies that this product is a factory direct replacement to the OEM branded filter.