NDS 422G 4 Pop Up Drainage Emitter with Elbow

NDS 422G 4″ Pop Up Drainage Emitter with Elbow, 4 Inch, Color may vary Every drainage system needs a point of release to prevent back-up issues. Use the Pop-Up Drainage Emitter to safely discharge collected water away from structures, erosion-prone landscapes, and poor drainage areas. When water pressure builds, the cover pops up as high as 1 in. to release water at up to 40 GPM. Cover closes automatically once the flow diminishes. Cover is made of polyethylene and the elbow is made of polyvinyl chloride. Features Works with a complete drainage system to release collected stormwater runoff and standing water to a discharge point before it causes costly property damage. Provides collected water a point of release at water-safe areas downstream and away from structures, erosion-prone landscapes, and poor drainage areas Elbow connects to 4 in. sewer and drain pipe, no fitting necessary; connects to other pipe types using appropriate adapters. Releases collected water up to 40 GPM. Supports pedestrian traffic including lawn tractors, when properly installed Pop-Up Drainage Emitter comes with elbow securely attached for an easier install. Outside flange prevents grass from growing over the cover Cap, or cover, pops up as high as 1 in. once water pressure builds; closes as flow diminishes.