Rain Bird - DPUV4EHUB - Drainage Pop Up Relief Valve with 4 Inch PVC Elbow and Hub Fitting Adapter Defogger Oval Meet the ultimate problem-solver for

Meet the ultimate problem-solver for professional irrigation

Helps cushion fragile items and reduce scratching

Designed for residential sewage applications where tough solids are common

Round front

Rain Bird - DPUV4EHUB - Drainage Pop Up Relief Valve with 4 Inch PVC Elbow and Hub Fitting Adapter Defogger Oval Meet the ultimate problem-solver forSpec Sheet A pop up water relief valve (also commonly known as a pop up drainage emitter) that is normally closed except when there is a build up of hydrostatic pressure. As the drainage pipes fill and build up slight pressure, the cover rises to allow the excess water to escape. Once the water is discharged the pressure drops and a stainless steel spring automatically retracts the cover to its closed flush position. The flush design of the product