'Filter Silencer, Outlet (In.) 4 (M)NPT, Max. Flow (CFM) 520, Filter Rating (Microns) 5, Polyester Filter Media, Filter Efficiency ( Percent) 99, Temp. Range (F) 15 to 220, Carbon Steel Housing Material, Height (In.) 14, Nipple Length (In.) 14, Dia. (In.) 10, Hood Design, For Use With Compressors and Blowers'