16-3/8x21-1/2x1 Air Filter by Glasfloss Quantity:2-Pack Protect your HVAC system with

Protect your HVAC system with Glasfloss GDS 18x20x1 disposable furnace filters

100% Synthetic Fiber Media

(MERV 10: 14 PPF) (MERV 11: 16 PPF)

FXM4X1800A

Protect your HVAC system with Glasfloss GDS 12x20x1 disposable furnace filters

16-3/8x21-1/2x1 Air Filter by Glasfloss Quantity:2-Pack Protect your HVAC system withProduct Details Glasfloss Air Filters are an excellent choice for any air conditioning system and are the ones used by the professionals. They are manufactured right here in Florida, by Floridians. Each air filter uses filter media that is made from 100% synthetic material that will not support microbial growth and does not absorb moisture. The media is supported by a galvanized, expanded metal backing that resists rust and corrosion. The filter frame