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Fiberglass MERV 4 12x12x1-Grille (Case of 12) Fiberglass MERV 4 12x12x1-Grille (Case of 12)

Actual dimensions are 11 1/8x11 3/8x7/8. The Glasfloss GDS disposable panel filter features an innovative, reinforced, double strut construction for excellent durability and performance in commercial, industrial, and residential applications. The design provides 10% greater open media area than traditional metal grill filters and offers excellent dust holding capacity. In addition, the design allows for easier disposal, eliminates sharp edges for safer handling and reduces carton weight for lower shipping costs. The GDS disposable panel filter is available in 1 and 2 depths in many standard sizes. Custom sizes are available in 1/2, 1 and 2 inch sizes. Normal filter life is approximately 30 days.

Our Price: $58.51
Fiberglass MERV 4 18x18x1 Grille (Case of 12) Fiberglass MERV 4 18x18x1 Grille (Case of 12)

Actual dimensions are 17 1/8x17 3/8x7/8. The Glasfloss GDS disposable panel filter features an innovative, reinforced, double strut construction for excellent durability and performance in commercial, industrial, and residential applications. The design provides 10% greater open media area than traditional metal grill filters and offers excellent dust holding capacity. In addition, the design allows for easier disposal, eliminates sharp edges for safer handling and reduces carton weight for lower shipping costs. The GDS disposable panel filter is available in 1 and 2 depths in many standard sizes. Custom sizes are available in 1/2, 1 and 2 inch sizes. Normal filter life is approximately 30 days.

Our Price: $60.51
Fiberglass MERV 4 30x24x1 Grille (Case of 12) Fiberglass MERV 4 30x24x1 Grille (Case of 12)

Actual dimensions are 23 3/8x29 1/8x7/8. The Glasfloss GDS disposable panel filter features an innovative, reinforced, double strut construction for excellent durability and performance in commercial, industrial, and residential applications. The design provides 10% greater open media area than traditional metal grill filters and offers excellent dust holding capacity. In addition, the design allows for easier disposal, eliminates sharp edges for safer handling and reduces carton weight for lower shipping costs. The GDS disposable panel filter is available in 1 and 2 depths in many standard sizes. Custom sizes are available in 1/2, 1 and 2 inch sizes. Normal filter life is approximately 30 days.

Our Price: $73.21
Pleated MERV 10 14x18x1 (Case of 12) Pleated MERV 10 14x18x1 (Case of 12)

Glasfloss ZLP Pleated 14x18x1 (Quantity of 12) A/C Furnace filter (Exact Size 13 7/8x17 7/8x3/4)
We are pleased to announce that our most popular, Glasfloss Z-Line Series pleated filter line, now achieves a MERV 10 rather than MERV 8 per the 2015 ANSI/ASHRAE 52.2-2012 Supplement Standard. The new MERV 10 performance will upgrade our Z-Line Series filters with no increase in initial pressure drop. Additionally, the service life will not be affected. Normal filter life is up to 90 days. Available in 1, 2 and 4 inch.

Our Price: $83.78
Pleated MERV 10 13x21 1/2x1 (Case of 12) Pleated MERV 10 13x21 1/2x1 (Case of 12)

Glasfloss ZLP Pleated 13x21 1/2x1 (Quantity of 12) A/C Furnace filter (Exact Size 13x21 1/2x3/4)
We are pleased to announce that our most popular, Glasfloss Z-Line Series pleated filter line, now achieves a MERV 10 rather than MERV 8 per the 2015 ANSI/ASHRAE 52.2-2012 Supplement Standard. The new MERV 10 performance will upgrade our Z-Line Series filters with no increase in initial pressure drop. Additionally, the service life will not be affected. Normal filter life is up to 90 days. Available in 1, 2 and 4 inch.

Our Price: $91.13
Pleated MERV 10 16 3/8x21 1/2x1 (Case of 12) Pleated MERV 10 16 3/8x21 1/2x1 (Case of 12)

Glasfloss ZLP Pleated 16 3/8x21 1/2x1 (Quantity of 12) A/C Furnace filter (Exact Size 16 3/8x21 1/2x3/4)
We are pleased to announce that our most popular, Glasfloss Z-Line Series pleated filter line, now achieves a MERV 10 rather than MERV 8 per the 2015 ANSI/ASHRAE 52.2-2012 Supplement Standard. The new MERV 10 performance will upgrade our Z-Line Series filters with no increase in initial pressure drop. Additionally, the service life will not be affected. Normal filter life is up to 90 days. Available in 1, 2 and 4 inch.

Our Price: $110.80
Pleated MERV 10 17 1/2x21x1 (Case of 12) Pleated MERV 10 17 1/2x21x1 (Case of 12)

Glasfloss ZLP Pleated 17 1/2x21x1 (Quantity of 12) A/C Furnace filter (Exact Size 17 1/2x21x3/4)
We are pleased to announce that our most popular, Glasfloss Z-Line Series pleated filter line, now achieves a MERV 10 rather than MERV 8 per the 2015 ANSI/ASHRAE 52.2-2012 Supplement Standard. The new MERV 10 performance will upgrade our Z-Line Series filters with no increase in initial pressure drop. Additionally, the service life will not be affected. Normal filter life is up to 90 days. Available in 1, 2 and 4 inch.

Our Price: $110.80
Pleated MERV 10 19 7/8x21 1/2x1 (Case of 12) Pleated MERV 10 19 7/8x21 1/2x1 (Case of 12)

Glasfloss Pleated MERV 10 19 7/8x21 1/2x1 (Quantity of 12) A/C Furnace filter (19 7/8x21 1/2x3/4 Exact Size)
We are pleased to announce that our most popular, Glasfloss Z-Line Series pleated filter line, now achieves a MERV 10 rather than MERV 8 per the 2015 ANSI/ASHRAE 52.2-2012 Supplement Standard. The new MERV 10 performance will upgrade our Z-Line Series filters with no increase in initial pressure drop. Additionally, the service life will not be affected. Normal filter life is up to 90 days. Available in 1, 2 and 4 inch.

Our Price: $125.70
Pleated MERV 10 20x23x1 (Case of 12) Pleated MERV 10 20x23x1 (Case of 12)

Glasfloss ZLP Pleated 20x23x1 (Quantity of 12) A/C Furnace filter (Exact Size 19 7/8x22 7/8x3/4)
We are pleased to announce that our most popular, Glasfloss Z-Line Series pleated filter line, now achieves a MERV 10 rather than MERV 8 per the 2015 ANSI/ASHRAE 52.2-2012 Supplement Standard. The new MERV 10 performance will upgrade our Z-Line Series filters with no increase in initial pressure drop. Additionally, the service life will not be affected. Normal filter life is up to 90 days. Available in 1, 2 and 4 inch.

Our Price: $125.70
Pleated MERV 10 21 1/2x23 5/16x1 (Case of 12) Pleated MERV 10 21 1/2x23 5/16x1 (Case of 12)

Glasfloss ZLP Pleated 21 1/2x23 5/16x1 (Quantity of 12) A/C Furnace filter (Exact Size 21 1/2x29 5/16x3/4)
We are pleased to announce that our most popular, Glasfloss Z-Line Series pleated filter line, now achieves a MERV 10 rather than MERV 8 per the 2015 ANSI/ASHRAE 52.2-2012 Supplement Standard. The new MERV 10 performance will upgrade our Z-Line Series filters with no increase in initial pressure drop. Additionally, the service life will not be affected. Normal filter life is up to 90 days. Available in 1, 2 and 4 inch.

Our Price: $137.83