Milton S-1837 3/8" MNPT H Style Plug - Pack of 2 Air flow of 67 standard cubic feet per minute Maximum temperature of 250 degrees Fahrenheit 3/8" Male national pipe thread Maximum inlet pressure of 300 pounds per square inch 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