One Stop Outdoor Premium USA Made Pop-Up Drainage Emitter, for 3 in. Drain Fittings, Green Plastic - for Outdoor Landscape Drain Pipe (Valve + 3inches Elbow)

🔍 Pop-Up Relief Valve with 3″ Elbow 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 it's closed flush position. The flush design of the product ensures that it blends well into the surrounding area. It is manufactured from a structurally foamed High Density Polyethylene (HDPE) with a UV inhibitor to reduce sun damage. Typical application is at the discharge end of the drainage pipe. Can be installed in either a vertical or horizontal position.

• MADE IN THE USA - Pop-Up body manufactured from structurally foamed High Density Polyethylene (HDPE).
• UV stabilized to protect from sun degradation.
• USE : Cover rises 1/2” to discharge excess water in system. Spring automatically retracts cover to flush position after excess water is discharged. Can be used in both vertical and horizontal position.
• PVC elbows (where applicable) include a 1/4” drain hole to eliminate standing water.
• Stainless steel spring to prevent rusting.