Air Boss NG-5 throttle control and check valve. Part # NG-5 PSI cut in at 95 and out at 115 PSI. Go to our web site to see our other compressor parts. http://airbosscompressors.blogspot.com We have in stock, rebuild kits and parts for Air Boss and Techquip air compressors. Air line filters, regulators , in-tank check valves, safety valves , auto moisture drains , electronic time auto drains