Furon Recirc Spray Guns are designed to eliminate bacterial growth in DI water spray gun systems. When the spray gun is not in use, the DI water travels back down the parallel recirculation orifice and discharges to the user's DI recovery or drain line. This continuous recirculation path eliminates bacterial growth caused by stagnant water in the lines. Furon Recirc Spray Guns feature a 100% virgin PTFE wetted fluid path, making them ideal for high-purity requirements for the semiconductor industry. Additionally, the Furon spray guns feature ergonomic design and include a self-coiling PFA/FEP coaxial hose.