Muffler, Air Inlet Size 1 in, Air Inlet Type NPT, Air Inlet Gender Female, Filter Element Material Stainless Steel, Maximum Operating Pressure 300 psi, Minimum Operating Temperature 35 Degrees F, Maximum Operating Temperature 160 Degrees F, Noise Reduction Rating 155 dB, Air Outlet Gender Female, Air Outlet Size 1 in, Air Outlet Type NPT, Body Material Aluminum, Minimum Flow Rate 0 scfm