Standard Filter Frame A reusable frame with a defining channel into which a filter medium is removable and replaceable with another filter medium. This frame also provides a non conductive static electricity isolator for static charge retainment. A sealing gasket is secured to the outer surface of the frame to provide a seal between the frame and the HVAC filter mounting assembly into which the frame is inserted. The sealing gasket is configured to insure an air tight seal that the air is forced through the filter medium before the air is circulated into a room. Price includes 8 months of filter media (8 units). For Custom Sizes, please email us here or call us at one of the numbers below Price: $69.95 Size: - Select - 10 x 10 12 x 12 12 x 24 12 x 30 14 x 14 14 x 30 16 x 16 16 x 24 16 x 30 18 x 12 18 x 18 18 x 24 20 x 12 20 x 14 20 x 16 20 x 20 20 x 24 20 x 25 24 x 12 24 x 18 24 x 24