Rain Bird - Drainage Pop Up Relief Valve with 4 Inch PVC Elbow and Hub Fitting Adapter Xeri and 17mm insert fittings

and 17mm insert fittings

decoders are an aesthetically pleasing

and warns when freezing conditions are expected

Fantastic for DIY installation

5000 Series Full-Circle Pattern Pop-up Rotor(Non Reversing FC)

Rain Bird - Drainage Pop Up Relief Valve with 4 Inch PVC Elbow and Hub Fitting Adapter Xeri and 17mm insert fittingsA 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 ensures that