Carrier 325531-404 Filter Freon While primarily designed for MK-series

While primarily designed for MK-series pneumatic actuators

By maintaining the correct venting velocity

The package includes two inverted flare to 3/4-inch sweat fittings

Ensure the heat exchanger is clean and the fan is operating at the correct CFM before replacing the switch

it utilizes a non-metallic disc-to-metal seating and a stainless steel spring to ensure consistent automatic reseating

Carrier 325531-404 Filter Freon While primarily designed for MK-seriesThe Carrier 325531 404 Filter is a genuine OEM replacement air filter engineered for high performance filtration in Carrier, Bryant, and Payne furnaces and air handlers. This unframed filter, measuring approximately 25 x 26 x 1 inches, is critical for maintaining optimal static pressure and protect the system's internal components from debris accumulation. As any veteran tech knows, using a factory authorized part ensures the exact fit required to