Accumulair

12x36x4 (11.5x35.5x3.75) Accumulair Platinum Filter MERV 11

12x36x4 (Actual Size) Accumulair Platinum Filter MERV 11

13.25x13.25x1 (Actual Size) Accumulair Platinum Filter MERV 11

13.25x13.25x0.5 (Actual Size) Accumulair Platinum Filter MERV 11

13.25x13.25x2 (Actual Size) Accumulair Platinum Filter MERV 11

13.25x13.25x4 (Actual Size) Accumulair Platinum Filter MERV 11

13x18x1 (Actual Size) Accumulair Platinum Filter MERV 11

13x18x0.5 (Actual Size) Accumulair Platinum Filter MERV 11

13x18x2 (Actual Size) Accumulair Platinum Filter MERV 11

13x18x4 (Actual Size) Accumulair Platinum Filter MERV 11

13x20x1 (Actual Size) Accumulair Platinum Filter MERV 11

13x20x0.5 (Actual Size) Accumulair Platinum Filter MERV 11