The X-tra Seal 1/2" NPT Male Automotive Style Air Tool Coupler is the perfect solution for your air tool needs. It is easily identifiable by its single thin ring on the coupler's sleeve. With a maximum operating range of 300 psi, this coupler is designed to provide reliable performance and long-lasting durability. Whether you're a professional mechanic or a DIY enthusiast, this coupler is the perfect choice for your air tool needs. FleetPride is your First Click in Heavy Duty®.