Milton S-1094-4 1/4" FNPT Full Port Brass Ball Valve HIGH CAPACITY: Ball valves for use with compressed air, water, or oil. Brass body, steel-plated ball. Plated 1/4 turn handle. Teflon seals. IDEAL: For isolating segments of the system without disrupting service to the rest. Great for natural gas and home water piping systems. NATIONAL PIPE THREAD: 1/4" Female NPT (FNPT x FNPT). 2-inch body length. MAX WORKING PRESSURE: (Air/Water/Oil = 400 PSI; Steam = 150 PSI; 210 degrees F = 280 PSI). TEMPERATURE RANGE: -20 degrees Fahrenheit to 350 degrees Fahrenheit. 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