PA-50 fiberglass paint stop floor filter 1,Low initial resistance 2,High separation ... efficiency 3,Economical PA-50 fiberglass paint stop floor filter Featrue:1,Low initial resistance 2,High separation ... density, inlet side is green, outlet side is whitel Large air flow, low pressure, high absorptivityl Easy to compress ... /130G2/G4210g/350g PA-50 fiberglass paint stop floor filter