422G Pop-Up Drainage Emitter, 4 In. Center Drive

The NDS 422G is a pop-up drainage emitter designed to manage water flow and prevent drainage problems in residential and commercial landscapes. This 4-inch emitter automatically opens when water pressure builds in your drain pipe, allowing runoff to discharge safely, then closes when flow diminishes to keep out debris, rodents, and other unwanted materials during dry periods.

Install this emitter to divert water away from problem drainage areas toward a safe discharge point. The low-profile design lifts just enough to release water without rising so high that it interferes with lawn mowers. The UV-inhibited polyethylene construction resists degradation from sun exposure, while the design helps maintain proper flow and prevent ice buildup inside the elbow fitting.

Features and Benefits

• Hydrostatic Operation: Opens automatically when water pressure flows through the drain pipe, closes as pressure decreases, with no manual adjustments needed.
• Mower-Safe Design: Low profile does not rise high enough to damage equipment during lawn maintenance.
• Debris and Rodent Protection: Stays closed during dry weather to block leaves, dirt, and pests from entering your drainage system.
• UV-Protected Polyethylene: Durable material with UV inhibitor resists sun damage and extends service life in harsh outdoor conditions.
• High Flow Capacity: 4-inch elbow rated at 40 GPM handles substantial water discharge from drainage systems.
• Universal Fit: Works with both 3-inch and 4-inch hub sewer and drain fittings.

Specifications

• Brand: NDS
• Model: 422G
• Size: 4 inch
• Compatible Fittings: 3 inch and 4 inch hub sewer and drain fittings
• Elbow: 4 inch, 90 degrees
• Material: Polyethylene with UV inhibitor
• Flow Rate: 40 GPM