Pneumatic Exhaust Muffler,3/4 In., Air Inlet Size 3/4 in, Air Inlet Type NPT, Maximum Flow Rate 112 scfm, Filter Element Material Bronze, Maximum Operating Pressure 300 psi, Minimum Operating Temperature 35 Degrees F, Maximum Operating Temperature 300 Degrees F, Filter Rating 40 micron, Fitting Material Steel, Air Outlet Size 3/4 in, Air Outlet Type NPT, Body Material Bronze, For Fluid Type Exhaust Air, Material Filtered Air, Gasoline, Oil, Minimum Flow Rate 0 scfm, Outside Diameter 1 1/16 in