20 x 25 x 6 MERV 11 Lennox X0445, X4560, X5424, PMAC20-C w/ Free Shipping - US Home Filter
Amazon.com: 201 Replacement Filter MERV 13 Compatible with Aprilaire 2200, 2250, Space Gard 2200 Whole House Air Cleaner Purifiers and Lennox PMAC-20C (Lennox X0445), MERV-13 Air Filter, 2-Pack : Home & Kitchen
Lennox X0445 20x25x6 MERV 11 Comparable Air Filter - 2PK
Lowest Price! Lennox X0445 (2-Pack) - PMAC-20C Filters 25 x 20 x 6
Lennox X0445 Aprilaire 201 PMAC-20C Filter Media - $53.99