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NDS 420 3'' & 4'' Pop-Up Drainage Emitter Only
Fits 3" and 4" hub Sewer and Drain Fittings
Can now be installed in vertical applications - ideal for discharging water from
retaining walls and street curbs. Spring automatically retracts.
The Pop-up Drainage Emitter is easy, safe and an efficient solution.
NDS Pop-Up drainage emitters act as the discharge point of a drainage system, opening easily when needed to allow water to flow freely from the pipe and away from structural foundations. The patented spring-loaded cap opens with the hydrostatic pressure of water flowing through the drain pipe, then closes as the flow diminishes. It allows water to be diverted and released to water-safe areas away from structures, erosion-prone landscapes, and poor drainage areas. The NDS pop-up drainage emitter with elbow is an easy, safe, and efficient solution to any drainage needs.