US Water handles the full line of Stenner Pump Parts. Since maintenance and repair are key elements of total life cycle costs, Stenner metering pumps are designed for easy serviceability and parts replacement. All major assemblies are secured by stainless steel locking rivets for quick disassembly without tools. And a phillips head screwdriver and 3/8" open-end wrench is all that's needed to change a tube, take apart all components and convert a single-head into a double-head pump. If you have questions, do not hesitate to call one of our water experts at 800-608-USWATER or e-mail us at [email protected].