The Milton 3/8" FNPT M-Style® Air Tool Coupler is the perfect choice for your air tool needs. This coupler is made of durable brass and features a buna-n seal for maximum performance. With a maximum pressure of 300 psi, this coupler is designed to handle the most challenging jobs. It also has 40 standard cubic feet per minute of airflow, making it ideal for various applications. FleetPride is your First Click in Heavy Duty®.