Backwater valves 1 1/2 inch

Backwater valves is perfect for secondary drainage line. 1-1/2" ABS HxH Backwater Valve or Sewage Check Valves - ABS DWV Schedule 40 Fitting. Prevents back flow of sanitary sewer, storm sewer or septic systems. With access cover. Hub x Hub intsllation Backwater valves of ABS material which can pit or corrode Keep backflow away