NDS 430 Spring Loaded Pop-Up Drainage Emitter with Elbow and Adapter for 3 in. and 4 in. Drain Pipes

Features:

• Spring-loaded cap pops up as high as 1 in. once water pressure builds and closes automatically as flow diminishes
• When not in use, cap stays closed to keep debris and rodents out of the drain
• Includes adapter for compatibility with both 3 in. and 4 in. drain pipes
• Small weep hole in elbow drains residual water from the pipe to prevent stagnation or freezing in cold weather
• Flange design prevents grass from growing over the cover

Applications:

• Provides a downstream point of release for water collected upstream in a drainage system
• Connects to 3 in. and 4 in. drain pipes for versatile installation
• Install at the lowest point in the drainage system, away from buildings, landscapes, and poor drainage areas