The X-tra Seal 1/2" NPT Female G Automotive Style Air Tool Coupler is designed to minimize air leaks and ensure that your air tools work at their best. This coupler features a maximum operating range of 250 psi. It is made of durable steel and has a blue automotive coupler style. This coupler is perfect for any automotive application and is sure to provide reliable performance. FleetPride is your First Click in Heavy Duty®.