NDS 420C Pop-Up Drainage Emitter, fits 3-Inch and 4-Inch Sewer and Drain Fittings, Works with Drainage Systems Including Catch Basins and Channel Drains, Green

1) This product provides great value for your money. It helps so much with yard drainage and costs very little. 2) It's so durable. I've been monitoring it for about 3.5 years now, and it has withstood all the sun, heat, and thunderstorms nature has thrown at it. Also, it has never caught the blade of my lawn mower, which has probably passed over it around 100 times now. 3) The rounded interior contours, internal ribs, and high-density polyethylene (HDPE) construction contribute to the overall strength of the product. 4) It's so simple to install if you've done your measurements in advance. 5) Cleaning the product is easy, although I've almost never had to over the years. But it's just as effortless to remove this product from the pipe as you might expect for something that stays embedded in your lawn all year long. 6) The emitter pops up just like it's supposed to during heavy storms that cause copious drainage. When installed properly, this product performs extremely well.

It is great fit for 4 inch drain fittings. Quality is fine.

Fit perfect. Worked perfect!

This drain cover is of very good quality and has worked exactly as I expected. It feels sturdy and well-made, not flimsy like others I have tried before. It fits properly and helps block debris effectively, which keeps the drain cleaner and reduces clogging issues. I also like that it is easy to place and remove whenever needed, making maintenance simple and quick. The material seems durable and resistant, so I believe it will last a long time even with regular use. It is a practical and reliable product that does its job well.

Works well and is easy to install. It is nice that it fits either 3 or 4 inch drain lines.

Fast shipping and great product. Thanks

Works great on my drain system for torrential rains. Keeps the critters out.

I recently installed the Pop-Up Drainage Emitter as part of my yard's drainage system, and I couldn't be happier with the results. It’s incredibly easy to install and fits perfectly with standard 4-inch drain pipes. The pop-up top works just as advertised—only opens when there’s water flow, keeping debris and critters out when not in use. What I really appreciate is the low-profile design. It blends in nicely with the lawn and doesn’t get in the way of mowing or foot traffic. Even after several heavy rainstorms, the emitter has performed flawlessly, preventing any pooling or flooding in problem areas. If you’re looking for a simple, effective, and durable solution for lawn drainage, this is it. Highly recommended!

Received promptly and in good condition. Easy to install and functions well. Used to divert eaves rainwater to a garden bed affixed to the end of a buried drain pipe. Recommended.

Fit perfectly, good quality replacement item.

My previous version of this item was manufactured with a spring loaded pop up lid. Works great. We will see how this version makes out as it has no spring. The spring just kept enough tension that when i went over it on mower the lid did not raise. Just FYI

So easy to install and works fantastic. Just make sure you use perforated pipe or drill hole in elbow going up to prevent freezing in winter.

I had a difficult time finding this on stores. It works great.