Solid brass construction with nickel plating provides rugged durability and rust resistance, delivering longlasting performance in air systems. Pressure rating: working pressure up to 200 psig; maximum pressure 300 psig, enabling reliable and efficient air filling for the compressor tank. Easy installation: 1/8 inch NPT thread size is a common standard, allowing straightforward connection to most air compressor tanks with minimal effort. Key attributes: function is a tank fill valve; compatibility includes standard 1/8' NPT fittings; size 1/8' NPT; material solid brass with nickel plating; performance rated for up to 200 psig working pressure and 300 psig maximum. Use scenarios: Filling and topping off a air tank for inflating tires, powering pneumatic tools, and other quickair tasks. Replacing a worn valve on a portable compressor to restore efficient tank filling and stable pressure. Supporting a home garage setup for nail guns, paint sprayers, and other pneumatic equipment that require reliable tank pressure.