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Merv 11 4" Furnace Filter Glasfloss 4" Merv 11 Furnace Filter (6 Pack)

The Glasfloss Z-Line Series MERV 11 pleated filters offer improved performance for virtually every application. All Glasfloss Z-Line pleated filters feature fibers which do not absorb moisture and will not support microbial growth.

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Merv 13 4" Furnace Filter Glasfloss 4" Merv 13 Furnace Filter (6 Pack)

The Glasfloss Z-Line MR 13 pleated air filter achieves Merv 13 while maintaining low pressure drop and good service life. The Merv 13 provides a cost-effective upgrade from lower efficiency pleated filters for a variety of applications.

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Merv 8 4" Furnace Filter Glasfloss 4" Merv 8 Furnace Filter (6 Pack)

The Glasfloss Z-Line Series Merv 8 pleated filters offers excellent performance and value for a wide range of applications. All Glasfloss pleated filters feature fibers which do not absorb moisture and will not support microbial growth.

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Honeywell Merv 11 Furnace Filter Glasfloss Honeywell Merv 11 Furnace Filter (5 Pack)

The Glasfloss Z-Line 400 HW & HWR (Honeywell) is a replacement option for the Honeywell F-100 and FC40R air filters. The ZLine 400 HW & HWR incorporates 100% synthetic fibers that are thermally-bonded, and manufactured in an engineered gradient structure.

Our Price: $165.99 (Free Shipping)
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Honeywell Merv 13 Furnace Filter Glasfloss Honeywell Merv 13 Furnace Filter (5 Pack)

The Glasfloss Z-Line 400 HW & HWR (Honeywell) is a replacement option for the Honeywell F-100 and FC40R air filters. The ZLine 400 HW & HWR incorporates 100% synthetic fibers that are thermally-bonded, and manufactured in an engineered gradient structure.

Our Price: $184.99 (Free Shipping)
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Honeywell Merv 8 Furnace Filter Glasfloss Honeywell Merv 8 Furnace Filter (5 Pack)

The Glasfloss Z-Line 400 HW & HWR (Honeywell) is a replacement option for the Honeywell F-100 and FC40R air filters.

Our Price: $129.99 (Free Shipping)
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