Description 2″, plastic inline sewage check valve, prevents back flow to sump or sewage pumps, will fit 2″ discharge pipes, prevents backflow of water into sewage basin which prevents pump from cycling on & off too often. Prevents backflow of water into sewage basin which prevents pump from cycling on and off too often Fits 2 in. diameter pipe Unique valve body allows for nearly 100% flow Swing style flapper, not spring loaded Flexible couplers for easy installation
