Muffler Air Inlet Size 1/2 in Air Inlet Type BSP Maximum Flow Rate 57 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 Noise Reduction Rating 57 dB Fitting Material Steel Air Outlet Size 1/2 in Air Outlet Type BSP Body Material Steel For Fluid Type Compressed Air Exhaust Air Inert Gas Material Filtered Air Gasoline Oil Minimum Flow Rate 0 scfm