Milton 731 M Style Recapper Plug - Pack of 10 Maximum inlet pressure of 300 pounds per square inch 40 standard cubic feet per minute Maximum temperature of 250 degrees Fahrenheit Complies with military specification MIL-C-4109 Made in USA Maximum inlet pressure of 300 pounds per square inch 40 standard cubic feet per minute Maximum temperature of 250 degrees Fahrenheit Complies with military specification MIL-C-4109