Safety blow gun with 10" angled extension is compliant as it limits pressure to 30 PSI when dead ended. Offers a maximum of 150 PSI on regulated compressed air lines. Blow gun offers 4.5 SCFM at 100 PSI. This extension is perfect for those hard to reach places. Has a 1/4" NPT air inlet and a nozzle thread size of 1/2" - 27. 1/4" national pipe thread 4.5 standard cubic feet per minute at 100 pounds per square inch Maximum pressure of 150 pounds per square inch