20mm Hunter HCV Drain Check Valve - Female Inlet & Male Outlet - Prevent Backflow for Irrigation Systems, Pools, and Water Features

If you have ever been faced with a job site that features extremes in elevation, then you have first-hand knowledge about low head drainage. Unfortunately, a system that requires ups and downs to fit the landscape will find that the water in its pipes seeks out the low points when the system is at rest. That typically results in messy puddling at the heads located at the lowest elevation and, ultimately, wasted water on walkways. With the Hunter HCV, this will never be a problem again.