FiltersFast Compatible Replacement for Trane Perfect Fit BAYFTAH21M 21.5" x 21" x 5" (Actual Size: 19 1/2" x 21.1" x 5") 2-Pack MERV 11 Dimensions: 21.5" x 21" x 5" (Actual Size: 19 1/2" x 21.1" x 5") MERV Rating: MERV 11 2-Pack For Added Convenience Energy Efficient - Saves You Money! Made in the USA!