The 190003 Tension Control Clamp Kit is a replacement part designed to work seamlessly with the FNS Plus, Quad DE, and Clean models. The 190003 Filter Pool Control Clamp is made of high quality stainless steel for superior performance, and this 190003 Filter Pool Control Clamp is built to last, withstanding the elements and preventing leaks and premature failure to ensure long-lasting performance. It is rigorously inspected and tested by themanufacturer before leaving the factory to meet or exceed OEM standards. Installation: 190003 pool filter clamp assembly easy to install. Remove the old clamp by releasing the pressure of the pool filter parts. Unscrew the nut using a wrench and undo the clamp. Reinstallthe new clamp and tighten it down. Filter clamp used for cleaning and maintenance of a cartridge or DE filter, keeps a tight seal between the two filter halves, replacing the clamp is a simple and convenient process. (You canfind the model on YouTube to watch the installation video)