The ECV-150 is a compact check valve designed to prevent the backflow of water in sump and utility pump systems. It installs vertically and connects to a 1-1/2 in. threaded discharge, with a male-threaded ABS valve body that fits standard hose kit pipe. The valve features an extremely durable flapper and a rugged ABS construction engineered for long service life. the ECV-150 is intended for reliable, low-maintenance protection of basements and utility spaces during pump operation. Use of this valve helps ensure that discharged water does not return to the sump, reducing pump cycling and protecting equipment.