NDS 422g 4 Pop Up Drainage Emitter with Elbow, Green

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 areasElbow 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 installedPop-Up Drainage Emitter comes with elbow securely attached for an easier install. Outside flange prevents grass from growing over the coverCap, or cover, pops up as high as 1 in. once water pressure builds; closes as flow diminishes. Small weep hole in elbow drains out any water in the pipe to prevent stagnation or freezing in cold weather