Milton S-1807 3/8" MNPT P Style Plug - Pack of 2 3/8" male national pipe thread Maximum of 300 pounds per square inch Air flow of 68 standard cubic feet per minute Maximum temperature of 250 degrees Fahrenheit Made in USA Milton is your number 1 source for Quality Air Accessories Since 1943 Milton has been producing Quality Air Accessories Milton covers automotive, industrial, hardware, agriculture, heavy-duty fleet and MRO markets