Allowing users to replace only air filter media reusable clamshell or thin envelope air filter frame fits in spaces less than 0.25 in thick It can be removed for service while continuing to reduce risk of disturbing dust loaded on filter Frames... Learn more

Formulated for high heat and humidity conditions in uncontrolled environments black Quadrafoam II can withstand harsh environments Filter frames can include special metal finishes for corrosion protection when exposed to moisture and harmful... Learn more