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NDS

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

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Availability: 13 left in stock
Fulfilled by Amazon
Arrives Monday, May 4
Order within 19 hours and 43 minutes
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Features

  • Works with a complete drainage system to release collected stormwater runoff and standing water to a discharge point before it causes costly property damage. Provides collected water a point of release at water-safe areas downstream and away from structures, erosion-prone landscapes, and poor drainage areas
  • Connects to 3 in. & 4 in. sewer and drain fittings; connects to other pipe types using appropriate adapters. Releases collected water up to 40 GPM. Supports pedestrian traffic including lawn tractors, when properly installed
  • Outside flange prevents grass from growing over the cover
  • Cap, or cover, pops up as high as 1 in. once water pressure builds; closes as flow diminishes. Flat profile design reduces trip hazard posed by open drain; closed position keeps emitter flush to the ground and safe from lawn mower blades
  • Comes with one Pop-Up Drainage Emitter . Hassle-free limited lifetime warranty guarantees the NDS product is free from defectsor well replace it

Description

Take stormwater runoff captured by grates, catch basins, channel drains, and other drainage systems to drain pipe, and carry it to a point of release downstream to discharge with a Pop-Up Drainage Emitter. The Pop-Up Drainage Emitter connects to 3 in. and 4 in. sewer and drain fittings which connect to sewer and drain pipe and triple-wall pipe. Cover is made of polyethylene.

Brand: NDS


Color: Green Plastic


Material: Plastic


Finish Type: Polished


Product Dimensions: 5.94"W x 1.25"H


Brand: ‎NDS


Color: ‎Green Plastic


Material: ‎Plastic


Finish Type: ‎Polished


Product Dimensions: ‎5.94"W x 1.25"H


Special Feature: ‎Pop-Up


Style: ‎420C


Number of Items: ‎1


Manufacturer: ‎NDS, Inc.


UPC: ‎052063030005


Global Trade Identification Number: ‎05


Part Number: ‎420C


Item Weight: ‎4.5 ounces


Item model number: ‎420C


Is Discontinued By Manufacturer: ‎No


Size: ‎3-inch & 4-inch


Finish: ‎Polished


Pattern: ‎Drainage Emitter


Shape: ‎shape


Power Source: ‎manual


Item Package Quantity: ‎1


Number Of Pieces: ‎1


Special Features: ‎Pop-Up


Included Components: ‎NDS - 422


Batteries Included?: ‎No


Batteries Required?: ‎No


Warranty Description: ‎Warranty.


Date First Available: December 4, 2013


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, May 4

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Still doing an excellent job after ~3.5 years
Size: 3-inch & 4-inch
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. ... show more
Reviewed in the United States on March 2, 2026 by resi5
    • Perfect Solution for Lawn Drainage – Easy Install & Works Flawlessly!
Size: 3-inch & 4-inch
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! ... show more
Reviewed in the United States on June 16, 2025 by Justin Morgan
    • Great drain emitter!
Size: 3-inch & 4-inch
2nd time I have purchased this pop up drain emitter (for a different drain), Fits nice and snug and works great. Highly recommend!
Reviewed in the United States on October 20, 2025 by Deb
    • Solid product. Does not work with Schedule 40 pipe without an adapter.
Size: 3-inch & 4-inch
So far, so good... seems to do what it's supposed to do, and, after getting the correct adapter, was easy to install. Solid construction, seems like it will be durable, and I installed it in an area that won't be mowed, so I don't have to worry about a lawn mower chopping it up. :) One important question to resolve, though. There seems to be some confusion about exactly what type and size of pipe this will fit. Not all PVC pipe is the same -- when a pipe is advertised as a 3 inch or 4 inch pipe, the stated dimension is usually referring to the inside diameter of the pipe (i.e., the hole), not the outside diameter. Different grades of pipe have different wall thickness, so the outside pipe diameter changes depending on the grade or "schedule" of pipe you have. For this item, this is important because it is designed to either fit inside a hub fitting, or slip over the outside of a pipe. To resolve this, I contacted the manufacturer and this is exactly what they told me: "The NDS Pop-up Emitter fits on sewer and drain pipe and not schedule 40 pipe. NDS part #3P16 is an adapter that will convert schedule 40 to sewer and drain. Place the adapter on top of the pipe and then place the Emitter on the adapter." The "sewer and drain" pipe referred to is a lighter pipe with thinner walls than Schedule 40 pipe. This pop-up emitter will not work with schedule 40 pipe and fittings. However, it's easy enough (and not expensive) to get an adapter. Doing so worked for me. ... show more
Reviewed in the United States on December 4, 2016 by Spider
    • They work great!
Size: 3-inch & 4-inch
My contractor used cheap and ill fitting grates for the drainage system. Rain just pushed them out and down the steep hill. These fit tight. The pop up valve stays closed until it rains. Grass and critters can't get in!
Reviewed in the United States on September 16, 2025 by Jami P.
    • Great!!!
Size: 3-inch & 4-inch
Great sewer cap. Love not looking at upside down cover
Reviewed in the United States on February 18, 2026 by Donna P
    • Highest recommendation
Size: 3-inch & 4-inch
Works great, excellent product for the money. Easy to install.
Reviewed in the United States on February 21, 2026 by Michael B
    • Well made
Size: 3-inch & 4-inch
This pop-up replacement is much stronger and better quality than the original and fits perfectly. I’m going to be proactive and replace the rest of mine.
Reviewed in the United States on October 20, 2025 by Brian B.

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