The Graco 237161 Husky 307 Air-Operated Double Diaphragm (AODD) Pump is a high-performance 3/8 inch (9.52 mm) positive displacement pump engineered for fluid transfer reliability. Constructed with a robust polypropylene body, this model features an acetal bolt-through diaphragm design to eliminate leakage and enhance durability in demanding industrial environments. Designed for efficiency, the Husky 307 operates on as little as 20 psi (1.4 bar) and can run dry without sustaining damage. It delivers a maximum free-flow rate of 7 gpm (26.5 lpm), making it ideal for low-viscosity fluid transfer, chemical processing, and water treatment applications. The stall-free, low-pulsation air valve provides smooth operation and easy maintenance with an externally serviceable pilot valuation system. This compact AODD pump offers versatile installation options and is compatible with a wide range of corrosive and non-corrosive fluids. Choose the Graco 237161 for a dependable, easy-to-service solution that ensures consistent flow and long-term chemical compatibility in your fluid handling system.