Move stormwater off your lawn fast with this NDS Pop-Up Drainage Emitter for 4 in. drain pipes. Protect foundations, patios, and low spots by directing collected water to a safe discharge point—then let the cap drop flat when the flow subsides.

Key Features

• Automatic outlet: Let the cap rise under water pressure, then close when flow slows.
• Low-profile safety: Reduce trip hazards with a flat cover that sits flush to grade.
• 4 in. elbow connection: Tie into 4 in. sewer & drain or triple-wall lines with proper adapters.
• All-weather performance: Clear residual water through a built-in weep hole to help prevent freezing and stagnation.
• Easy installation: Set the cover flush or slightly below turf to avoid mower contact.
• Lightweight build: Handle and position easily during install at just 1.0 lb.

Applications

Finish your yard drainage, French drain, or downspout line with a clean outlet at the system’s low point. Route water away from structures, landscape beds, and walkways, and discharge it in a controlled area such as a swale or lawn.

Specifications

• Compatibility: 4 in. drain pipes (sewer & drain, triple-wall; use adapters as needed)
• Configuration: 90° elbow with pressure-activated pop-up cover
• Profile height: Cap lifts up to about 1 in. when flowing
• Weather detail: Integrated weep hole to drain leftover water
• Weight: 1.0 lb

Set slope so water naturally reaches the emitter, then backfill and compact soil to maintain grade. Test the line with a hose to confirm the cover pops up and seats flat after discharge.