Merv 11 Air-T-Rex Universal Replacement Filter - With Carbon

Provides MERV 11 real world efficiency with added benefit of carbon to remove odours Air Filtration Efficiency: 95% of particles as small as 3-micron plus 75% of one-micron particles Depth-Loading Technology & Three Filtration Stages Contains 29% post-consumer recycled content The filtering material of the Air-T-Rex is thermally fused around a galvanized wire ring. The Air-T-Rex is self-sealing to prevent 'Dirty Air By-Pass' common with ALL cardboard framed pleated filters For a perfect seal, the filtering media has a flexible one inch 'selvedge edge' that exceeds past the galvanized steel frame to provide a complete gasket seal around the perimeter The Air-T-Rex Premium + Carbon is a particularly good choice if you have an air exchanger Price per Filter, 12 Filters per case