Efficient NDS 430 Pop-Up Drainage Emitter: 3 in. & 4 in. Pipes, with Elbow and Adapter - Green Plastic Review

B00G5GDJMY. 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 with adapter connects to 3 in. & 4 in. sewer and drain pipes, 3 in. & 4 in. single-wall corrugated pipes, 3 in. & 4 in. triple-wall pipes, and 4 in. Sch. 40 pipe. 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. Small weep hole in elbow drains out any water in the pipe to prevent stagnation or freezing in cold weather. Comes with one Pop-Up Drainage Emitter, Elbow, and Adapter . Hassle-free limited lifetime s the NDS product is free from defects—or we’ll replace it.