Features: 99%+ removal efficiency standard Polyester: 5 microns, Paper: 2 microns Heavy duty T bolts for easy maintenance Powder coat paint finish Rugged all steel construction with baked enamel finish Low pressure drop Positive sealing O-ring seal system Inlet air enters canister above element which extends element life and maintenance intervals Hydrostically tested 0.5 bar pressure for vacuum tightness Inlet/Outlet 1/4″ gauge taps standard Temp (continuous): min -15° F ( -26° C) max 220° F (104° C) Vacuum rating: Gas tight o-ring seal Filter change out differential: 10″-15″ in. H2O above initial delta P Large dirt holding capacity and easy field cleaning