3 Inch Air Filters

Zephyr 16x20x3 VGF Merv 11 Media Air Cleaner Replacement Filter for Return Air Grilles. Case of 3

The 16x20x3 Merv 11 VGF Series 3 inch Deep 6-month Pleated Filters are a filter upgrade for your Return Air Filter Grilles that traditionally use 1 inch 3-month filter. Turns almost any air filter return into a media air cleaner. Gasketed Filter...

Zephyr 20x20x3 VGF Merv 13 Media Air Cleaner Replacement Filter for Return Air Grilles. Case of 3

The 20x20x3 Merv 13 VGF Series 3 inch Deep 6-month Pleated Filters are a filter upgrade for your Return Air Filter Grilles that traditionally use 1 inch 3-month filter. Turns almost any air filter return into a media air cleaner. Gasketed Filter...