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Buying Our Filters

Online vs In-store pickup

All Filters sold online for shipment will be sold in cases of 12 filters per case. If you'd like to order online and pick up in-store, at our Stuart location, please see our "store pickup" page or call us to order as few as 1 air filter in our 1" and 2" standard sizing.

Our Filters: Store Policies

Glasfloss Filters

Pleated Filters

The Glasfloss Z-Line Series pleated filters offer improved performance for virtually every application. These filters have extended-surface pleated media made of 100% synthetic fibers which do not absorb moisture and will not support microbial growth. The Glasfloss Z-Line Series ZL filters achieve a MERV 10 rating and MR-11 filters achieve a MERV 11 rating per the ANSI/ASHRAE 52.2 Test Standard.

Gateway Filters proudly carries a vast selection of sizes in the ZL filters. We can order special sizes we may not carry and any common filter in the higher MERV 11 or MERV 13 rating.

  • ZL: MERV 10

  • MR-11: MERV 11

  • Heavy-Duty Moisture-Resistant Construction

  • Standard Size 4” and 6” Thick Incorporate Media Separators


Merv 10 Filters

All Gateway Filters are Merv 10. For Merv 11 and 13 please call us to order!

Our Filters: Products
Our Filters: Stores
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