Model # 422G

Internet #100153624

Store SKU #130487

null 4 in. Polyethylene Pop-Up Drainage Emitters with Elbow

4 in. Polyethylene Pop-Up Drainage Emitters with Elbow

  • Helps divert water away from structures and other areas
  • For use with 3 in. and 4 in. drain and sewer fittings
  • Backed by limited lifetime warranty
$1420 /each
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Frequently Bought Together

Product Overview

The NDS 4 in. pop-Up Drainage Emitters with Elbow is designed to help solve multiple drainage needs. It can be used with 3 in. and 4 in. drain and sewer fittings. Allows water to be diverted and released to water-safe areas away from structures, erosion-prone landscapes and poor drainage areas.

  • Allows water captured by grates, catch basins, channel drains, flow-well, downspouts and roof gutter systems to flow through the drainage pipe and to a water safe area such as a gutter
  • Opened by the hydrostatic pressure of water flowing through the drain pipe, as flow diminishes the emitter closes again
  • Great for discharging water from retaining walls and street curbs
  • Fits 3 in. and 4 in. hub sewer and drain fittings
  • Emitter opens with minimal pressure
  • Closed during dry weather to help keep debris and rodents from entering the drain pipes



Product Depth (in.)
Product Height (in.)
Product Length (in.)
Product Width (in.)


Accessory Type
Color/Finish Family
Underground Use
Pipe or Fitting Product Type
Product Weight (lb.)

Warranty / Certifications

Manufacturer Warranty
Limited Lifetime

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Customer Questions & Answers

will this connect to flex-drain tubing?

Model # 52110D in particular?
Asked by: olasnick
Not this exact one. This one works with 4" "pipe". There is one that has a bigger flange where you would connect the flex tubing. You can see it here on YouTube.
Answered by: PainterPete
Date published: 2015-12-07

Can I buy without elbow

Asked by: Reds
Yes, you CAN find the emitter fitting without the elbow. HD has it here:
Answered by: PainterPete
Date published: 2017-05-12

Black Corrugated Pipe

Do I need an adapter to tie 4" black corrugated drain pipe into this elbow?
Asked by: DIYDrainage
Yes, this one is meant for 4" solid piping. They DO sell one that looks like this and has a bigger flange for the corrugated pipe, you can see it here on YouTube: Not sure if HD sells it. You probably can find a fitting in HD that will fit this if you look around the department where they sell this and the piping
Answered by: PainterPete
Date published: 2017-06-20

Will this work on a pool overflow drain?

Contemplating using this at the end of a 2" pvc pipe which is connected to a pool overflow pipe. Will the pressure be adequate to "pop up" the mechanism?
Asked by: Tony
Answered by: Sebastian
Date published: 2016-09-22
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Customer Reviews

4 in. Polyethylene Pop-Up Drainage Emitters with Elbow is rated 4.1 out of 5 by 12.
Rated 4 out of 5 by from Working as intended I installed this product at the end of a drainage system tying two of my downspouts together. Three severe thunderstorms and Hurricane Sandy put it to the test. The only reason it didn't get five stars is from the emitters tendency to stick closed in moderate rainfall if it isn't cleaned periodically. I really like the low profile design and the subterranean elbow emitter that prevents the constant "weeping" of water across my driveway. No problems with my lawn mower shearing off the pop-up cap.
Date published: 2012-12-24
Rated 5 out of 5 by from The best part of the drainage system. The NDS 4 in. pop-Up Drainage Emitters with Elbow works very well. It rained after 8 hours after installation, and I have added a short video to demonstrate how well it works. Thanks NDS, for your technology. it really works very well.
Date published: 2015-10-31
Rated 5 out of 5 by from Works Well I didn't buy this pop-up drainage emitter to use for my downspouts, which certainly would work too. I used it to connect to the pipe that comes from my sump pump. The is only 2 inch diameter, so I had to use a reducer, but it works very well. Some reviews mention that it might get damaged but the lawn mower, but if you put it level with the soil it can't get sucked up high enough to get damaged by the mower. I certainly haven't had any problems. I like the product because it is easy to install and it looks good, is not obvious in the grass. Since it automatically closes it also prevents dirt and leaves from falling into the drainage pipe.
Date published: 2015-11-24
Rated 5 out of 5 by from Works great I installed the NDS 4 in Drainage Emitter cover on an underground gutter drain. We were having problems with debris getting through the grate and clogging up the drain. This solved the problem. I initially had problems with a real heavy rain washing the cover off and our dog pulling it off. That was easily solved with a single self-taping screw. I provided some photos.
Date published: 2015-11-11
Rated 4 out of 5 by from Watch the mover This works well for the most part. Plumbs in with your lawn drainage and stays out of the way when water doesn't need to flow. Although you get standing water inside the elbow and tubes on a gentle slope, where a typical gravel bed ending would not. However, it is much easier to install and can't really get saturated and stop draining. The only real negative I've found with this is due to the light weight of the pop up part. You need to be very careful if you have a strong uplift mower. I scraped the top of it up and was glad I was mowing with my max height. All in all it is a quick drainage solution and works well.
Date published: 2016-04-30
Rated 2 out of 5 by from fragile covers My mower sheered off the pop up on both of these. I swear, the covers were flush to the ground, but it must not take much to catch them. They should sell the pop up parts separately--you can't mow over them, apparently, unless they're below grade. I tried to superglue the pop up on one and drive over it slowly, but it still broke off. I'll replace it with a standard drain cover, I think.
Date published: 2010-07-06
Rated 5 out of 5 by from good design I recommend these popup drain emitters for several reasons. They are good quality material, right sized, and easy to install. I especially like that the corragated hose fits into the popup rather than fighting to get it to fit around the plain black elbows. I think the popups give better drainage. I reworked all my gutter drains in the front of the house to avoid water running down the driveway and sidewalk. It now drains into the yard rather than down the driveway and sidewalk. The pop ups are more cleaner than having splashblocks in the way.
Date published: 2016-01-11
Rated 5 out of 5 by from Perfect for routing drain water away from your house After many years of having issues with rain gutter water around my back yard patio, I decideD to take on the task of routing the water away from the house. I debated if I should route it to a "drywell" or out an emitter. I decided upon the emitter and I am glad I did AFTER seeing it work. I routed a 4" pipe out to an area of my lawn that always seemed a bit dry in very hot Summers. the Last 8' run of "4 pipe I used perforated. I figured the pop-up would be for overflow as I routed two downspouts into the 4". It works as expected. If the rain is heavy it overcomes what can be handled by the perforated pipe and comes out of the emitter I was a little apprehensive about the emitter in the lawn, but after the grass grew back in etc, you really don't notice it unless you know where it is. All and all, I like how this performs, I am putting one in on the opposite side of my house. A good quality product
Date published: 2015-12-06
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