NDS 430 Pop-Up Drainage Emitter with Elbow and Adapter & Round Spee-D Catch Basin Drain With 1 Outlet, 6 in., Black

The units fit onto 4" corrugated just fine. One issue on one of them was that the top green piece is NOT attached to the upright pipe nor is it a tight friction fit...so water pressure could easily push it off.

My old drain was missing the 90° piece, so ordered this set. Dug out the drainage pipe and used the 4" adapter. It connected right up, filled it back with dirt. Now the lid is solid and level with the lawn!

Works great.

We ordered 3 of these and one came without the green top. Who do I contact to get this fixed?

The media could not be loaded.  The cap will blow off from the water pressure with the spring on, but if you slide the spring off it’s able to open enough for the cap to stay on. Works great so far!

It has a spring that holds it down on the mower goes over it, but let’s water release when it’s full so the blades of the mower don’t butcher it like they did with other items

Perfect option.

After a heavy rain one of our emitters washed away, this was a perfect replacement. Price was same but included an adaptor and a 90 degree elbow. I only needed the cap so the other parts are a bonus and came next day. Saved me a trip and all is good! Highly recommended!