122-1774, RS PRO, RS PRO Pad Filter, G4 Grade, 1.6 x 1 m, Brand RS Pro, Filter Type Pad, Actual Dimensions 1.6 x 1 m, ISO 16890 Class ISO-C-60, Filter Grade G4, Initial Pressure Drop 20Pa RS PRO Pad Filter, G4 Grade, 1.6 x 1 m