Size

Glasfloss ZL 12x30x1 MERV 10 (FPR 5-6) AC Furnace Air Filters. (Box of 6). Actual Size: 11-5/8 x 29-1/2 x 7/8

Actual Size: 11-5/8 x 29-1/2 x 7/8 | Nominal Size: 12 x 30 x 1 Filtration Rating: MERV 10. Comparable to MPR rating 600 to 800, or FPR 5-6 rating.  Improved MERV 10 Filtration with similar air flow and resistance as a MERV 8 filter. Durable &...

Glasfloss ZL 10x30x1 MERV 10 (FPR 5-6) AC Furnace Air Filters. (Box of 6). Actual Size: 9-5/8 x 29-5/8 x 7/8

Actual Size: 9-5/8 x 29-5/8 x 7/8 | Nominal Size: 10 x 30 x 1 Filtration Rating: MERV 10. Comparable to MPR rating 600 to 800, or FPR 5-6 rating. Improved MERV 10 Filtration with similar air flow and resistance as a MERV 8 filter. Durable & Long...

Glasfloss ZL 21x21x1 MERV 10 (FPR 5-6) AC Furnace Air Filters. (Box of 6). Actual Size: 20-7/8 x 20-7/8 x 7/8

Actual Size: 20-7/8 x 20-7/8 x 7/8 | Nominal Size: 21 x 21 x 1 Filtration Rating: MERV 10. Comparable to MPR rating 600 to 800, or FPR 5-6 rating. Improved MERV 10 Filtration with similar air flow and resistance as a MERV 8 filter. Durable & Long...

Glasfloss ZL 21.5x23.5x1 MERV 10 (FPR 5-6) AC Furnace Air Filters. (Box of 6). Actual Size: 21.5 x 23.5 x 7/8

Actual Size: 21.5 x 23.5 x 7/8 | Nominal Size: 21.5 x 23.5 x 1 Filtration Rating: MERV 10. Comparable to MPR rating 600 to 800, or FPR 5-6 rating. Improved MERV 10 Filtration with similar air flow and resistance as a MERV 8 filter. Durable & Long...

Glasfloss ZL 20x23x1 MERV 10 (FPR 5-6) AC Furnace Air Filters. (Box of 6). Actual Size: 19-1/2 x 22-1/2 x 7/8

Actual Size: 19-1/2 x 22-1/2 x 7/8 | Nominal Size: 20 x 23 x 1 Filtration Rating: MERV 10. Comparable to MPR rating 600 to 800, or FPR 5-6 rating. Improved MERV 10 Filtration with similar air flow and resistance as a MERV 8 filter. Durable & Long...

Glasfloss ZL 20x21x1 MERV 10 (FPR 5-6) AC Furnace Air Filters. (Box of 6). Actual Size: 19-1/2 x 20-1/2 x 7/8

Actual Size: 19-1/2 x 20-1/2 x 7/8 | Nominal Size: 20 x 21 x 1 Filtration Rating: MERV 10. Comparable to MPR rating 600 to 800, or FPR 5-6 rating. Improved MERV 10 Filtration with similar air flow and resistance as a MERV 8 filter. Durable & Long...

Glasfloss ZL 18x22x1 MERV 10 (FPR 5-6) AC Furnace Air Filters. (Box of 6). Actual Size: 17-3/4 x 21-3/4 x 7/8

Actual Size: 17-3/4 x 21-3/4 x 7/8 | Nominal Size: 18 x 22 x 1 Filtration Rating: MERV 10. Comparable to MPR rating 600 to 800, or FPR 5-6 rating. Improved MERV 10 Filtration with similar air flow and resistance as a MERV 8 filter. Durable & Long...

Glasfloss ZL 17.5x21x1 MERV 10 (FPR 5-6) AC Furnace Air Filters. (Box of 6). Actual Size: 17-1/2 x 21 x 7/8

Actual Size: 17-1/2 x 21 x 7/8 | Nominal Size: 17.5 x 21 x 1 ? Filtration Rating: MERV 10. Comparable to MPR rating 600 to 800, or FPR 5-6 rating. Improved MERV 10 Filtration with similar air flow and resistance as a MERV 8 filter. Durable & Long...

Glasfloss ZL 17x22x1 MERV 10 (FPR 5-6) AC Furnace Air Filters. (Box of 6). Actual Size: 16-1/2 x 21-1/2 x 7/8

Actual Size: 16-1/2 x 21-1/2 x 7/8 | Nominal Size: 17 x 22 x 1 ? Filtration Rating: MERV 10. Comparable to MPR rating 600 to 800, or FPR 5-6 rating. Improved MERV 10 Filtration with similar air flow and resistance as a MERV 8 filter. Durable & Long...

Glasfloss ZL 16x19x1 MERV 10 (FPR 5-6) AC Furnace Air Filters. (Box of 6). Actual Size: 15-1/2 x 18-1/2 x 7/8

Actual Size: 15-1/2 x 18-1/2 x 7/8 | Nominal Size: 16 x 19 x 1 Filtration Rating: MERV 10. Comparable to MPR rating 600 to 800, or FPR 5-6 rating. Improved MERV 10 Filtration with similar air flow and resistance as a MERV 8 filter. Durable & Long...

Glasfloss ZL 15x25x1 MERV 10 (FPR 5-6) AC Furnace Air Filters. (Box of 6). Actual Size: 14-1/2 x 24-1/2 x 7/8

Actual Size: 14-1/2 x 24-1/2 x 7/8 | Nominal Size: 15 x 25 x 1 ? Filtration Rating: MERV 10. Comparable to MPR rating 600 to 800, or FPR 5-6 rating. Improved MERV 10 Filtration with similar air flow and resistance as a MERV 8 filter. Durable & Long...

Glasfloss ZL 14x18x1 MERV 10 (FPR 5-6) AC Furnace Air Filters. (Box of 6). Actual Size: 13-1/2 x 17-1/2 x 7/8

Actual Size: 13-1/2 x 17-1/2 x 7/8 | Nominal Size: 14 x 18 x 1 ? Filtration Rating: MERV 10. Comparable to MPR rating 600 to 800, or FPR 5-6 rating. Improved MERV 10 Filtration with similar air flow and resistance as a MERV 8 filter. Durable & Long...