Painting Room Air Filter Cartridge Features of Standard construction cellulose/fiber glass synthetic material Performance Description: wider pleat width high filtration efficiency Filter Material: 80%Cellulose+20%Polyester Excellent ability for moisture protection Top open, bottom open/bottom close with deflating bolt hole Galvanized stainless metal configuration rubber seal. dust collector Selection of Material RH1 Cellulose material RH1A Cellulose+ Flame Retardant material RH12H polyester/fiber glass synthetic material Application field: Widely used in the painting workshop of ship-building, casting, large steel structure. Used to replace the relevant products of DONALDSON. Can be used in every dust collectors of the dust collector manufacturer. CARTRIDGE MODEL FilterMaterialTop End CapOD mmBottom End Cap OD mmTop end Cap ID mmbolt hole mmHeight mmFiltration aream2RH/Z3266RH1/RH1A/RH12A324mm324mm213mm14mm/--660mm21m2RH/Z3566RH1/RH1A/RH12A352mm352mm241mm16mm/--660mm23m2