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  • NDS 11, 4 in. Round Grate Cover Connects to 4 Inch Drain Pipes & Fittings, for Small Lawns, Landscaping and Patios, Black Plastic
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NDS 11, 4 in. Round Grate Cover Connects to 4 Inch Drain Pipes & Fittings, for Small Lawns, Landscaping and Patios, Black Plastic

4.5 out of 5 stars 3,404 ratings
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Purchase options and add-ons

Brand NDS
Material Polyvinyl Chloride (PVC)
Colour Black Plastic
Product Dimensions 10.2L x 11.7W Centimetres
Inside diameter 4 Inches
Maximum pressure 60 Pound per Square Inch
Nominal wall thickness 2 millimeters
Outside diameter 10.2 Centimeters
Item length 4 Inches
UPC 052063400112

About this item

  • Use to drain excess water and direct it to a more water safe area such as a curb or gutter
  • Can be use in large lawn areas, large landscape areas, patios and atriums
  • Can be used with 4-Inch sewer and drain pipe and fittings, 4-Inch corrugated pipe and 4-Inch triple wall pipe
  • Open surface area 3.85 Square in
  • UV inhibitors help prevent cracking and fading due to exposure to the elements

Frequently bought together

NDS 11, 4 in. Round Grate Cover Connects to 4 Inch Drain Pipes & Fittings, for Small Lawns, Landscaping and Patios, Black Pla
This item: NDS 11, 4 in. Round Grate Cover Connects to 4 Inch Drain Pipes & Fittings, for Small Lawns, Landscaping and Patios, Black Plastic
$17.99
Get it by Sunday, Jul 27
In Stock
Sold by Express Health Supply and ships from 鶹 Fulfillment.
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NDS FWAS24 Dry/Flo-Well Storm Water Leaching System, Black, 24" x 28.75"
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NDS FWFF67 Filter Fabric Wrap for Flo-Well® Stormwater Dry Well System, 2 ft. wide X 7 ft. long, Pack of 1, Nonwoven Geotexti
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Total price:$00
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Product description

When you need to drain surface water before it can damage your property, you don’t need pesky leaves and debris getting in the way. The 4 in. Round Drain Grate blocks these intruders from entering and potentially clogging the pipeline, and is ideal for draining light flows of stormwater from small lawns, landscaped areas, patios, and walkways.

The 4 in. Round Drain Grate, also known as a drain cover, has an open surface area of 3.9 sq. in. and a flow rate of 12 GPM. Connects to 4 in. sewer and drain pipe & fittings, 4 in. single-wall corrugated pipe, and 4 in. triple-wall pipe for a soil-tight fit. The pipe grate is ADA Compliant and heel-proof. Built to stand up to the elements, it’s made of polyethylene, a type of plastic, using a combination of virgin and recycled content treated with UV inhibitors to prevent fading and cracking from the sun. As part of a complete drainage system, the grate blocks leaves and debris as it drains water entering drain pipes. The pipes carry the water to a discharge point downstream such as a pop-up emitter, or to percolate into the ground with a dry well or infiltration trench.

NDS offers free tools such as the Home Drainage Center, Calculators, and NDS Stormwater Drainage mobile app to help make your project a success. Founded in 1972, NDS is the preferred choice of professionals and the leader in stormwater management solutions.

Product information

Technical Details

Manufacturer ‎NDS
Place of Business ‎WOODLAND HILLS, CA, 91367 US
Part Number ‎11
Product Dimensions ‎32.72 x 32.72 x 29.54 cm; 70 g
Item model number ‎11, 4 in.
Is discontinued by manufacturer ‎No
Size ‎4 Inch
Colour ‎Black Plastic
Style ‎11
Material ‎Polyvinyl Chloride (PVC)
Pattern ‎Cover
Item Package Quantity ‎1
Inside Diameter ‎4 Inches
Measurement System ‎inch
Included Components ‎NDS 11 Plastic Round Grate, 4-Inch, Black
Batteries Included? ‎No
Batteries Required? ‎No
Warranty Description ‎1 Year Warranty
Item Weight ‎70 g

Additional Information

ASIN B000BO8OAI
Customer Reviews
4.5 out of 5 stars 3,404 ratings

4.5 out of 5 stars
鶹 Rank
Date First Available Aug. 3 2011

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NDS 11, 4 in. Round Grate Cover Connects to 4 Inch Drain Pipes & Fittings, for Small Lawns, Landscaping and Patios, Black Plastic

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Customer reviews

4.5 out of 5 stars
3,404 global ratings

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Customers say

Customers like the quality, fit, and functionality of the hardware tubing. They mention it's well-made, fits perfectly, and works great.

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QualityFitFunctionality
12 customers mention "Quality"12 positive0 negative

Customers are satisfied with the quality of the hardware tubing. They mention it's well-made and has nice thick plastic.

"Good quality" Read more

"...鶹. Bought 2, work great, nice thick plastic." Read more

"...standard 4" drain "big-O" type pipe, but they are nonetheless very good quality, and could easily support the weight of a foot or lawn tractor tire...." Read more

"Its a good solid cover. Used 2 self taping screws to keep it in place so the little critters don't make their homes inside the drainage pipe...." Read more

7 customers mention "Fit"7 positive0 negative

Customers like the fit of the product. They mention it fits inside corrugated tile drainage, fits 4" weeping tile, and securely on exposed drain pipes.

"Fit perfectly in 4” weeping tile." Read more

"...They fit well inside the corrugated piping" Read more

"Really sturdy and fit perfectly!" Read more

"very happy abut this .. fitted securely on exposed drain pipe." Read more

7 customers mention "Functionality"7 positive0 negative

Customers are satisfied with the functionality of the product. They mention it works great and has a nice thick plastic.

"works well" Read more

"I used this product to install a drain in a sidewalk. It works and looks great." Read more

"...But know where I can find them easily? 鶹. Bought 2, work great, nice thick plastic." Read more

"The grate was installed as a floor drain into big-O. Worked like a dream. Heavy duty product delivered to your door!" Read more

Top reviews from Canada

  • Keith S
    5.0 out of 5 stars This fit perfectly into the fitting. It is strong and will be able to last indefinitely.
    Reviewed in Canada on December 22, 2024
    Verified Purchase
    I used this product to install a drain in a sidewalk. It works and looks great.
    Helpful
     Report
  • Chris Benjamin
    5.0 out of 5 stars Quality
    Reviewed in Canada on July 11, 2024
    Verified Purchase
    I'll be honest, I hate going to the store. Plus what isle do I find these in? It's anyones guess. But know where I can find them easily? 鶹. Bought 2, work great, nice thick plastic.
    One person found this helpful
    Helpful
     Report
  • GregH
    4.0 out of 5 stars Great product but need a wider flange for 4" pipe
    Reviewed in Canada on November 19, 2020
    Verified Purchase
    These don't have much of lip to catch standard 4" drain "big-O" type pipe, but they are nonetheless very good quality, and could easily support the weight of a foot or lawn tractor tire. Lost a star because they do pop out now and then, but I plan on driving 1 or 2 screws through the pipe and into the cover to hold them firm.
    Helpful
     Report
  • JB
    5.0 out of 5 stars Good product
    Reviewed in Canada on October 19, 2024
    Verified Purchase
    Fit perfectly in 4” weeping tile.
    Helpful
     Report
  • Deborah Milne
    5.0 out of 5 stars works
    Reviewed in Canada on July 13, 2025
    Verified Purchase
    works well
    Helpful
     Report
  • 鶹 Customer
    5.0 out of 5 stars Fits 4" Weeping tile perfectly
    Reviewed in Canada on July 18, 2022
    Verified Purchase
    Its a good solid cover. Used 2 self taping screws to keep it in place so the little critters don't make their homes inside the drainage pipe. Had no issues installing this cover.
    Helpful
     Report
  • M.R.
    5.0 out of 5 stars Quality product
    Reviewed in Canada on December 31, 2022
    Verified Purchase
    The grate was installed as a floor drain into big-O. Worked like a dream. Heavy duty product delivered to your door!
    Helpful
     Report
  • 鶹 Customer
    3.0 out of 5 stars Too big for the purpose for which it was mage
    Reviewed in Canada on May 9, 2019
    Verified Purchase
    Well made
    Helpful
     Report

Top reviews from other countries

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  • 鶹 Customer
    5.0 out of 5 stars Five Stars
    Reviewed in the United Kingdom on May 25, 2017
    Verified Purchase
    Great product would buy again
    Report
  • JESUS PAPA PARRA
    5.0 out of 5 stars coladera para azotea
    Reviewed in Mexico on June 24, 2025
    Verified Purchase
    Ajusta bien, ha durado sin problema muy practica
    Report
  • Donna Murphy
    5.0 out of 5 stars Vent cover
    Reviewed in the United States on June 16, 2025
    Verified Purchase
    Covered our area where pipe was left uncovered
    Report
  • Cortney Thibodeau (WNIE CORP)
    5.0 out of 5 stars Keeps the critters out — mission accomplished!
    Reviewed in the United States on March 24, 2025
    Verified Purchase
    Look, it’s not glamorous… it’s not exciting… it’s a round black plastic cover. But when you need one, you really need one. I got this to keep rodents, leaves, and who-knows-what from crawling into my 4" drain pipe, and it does exactly that — no complaints from the squirrel union so far.

    Honestly, I checked every local hardware store, and none of them carried this exact size or type. So instead of doing the “wandering the aisle” dance for the third time, I ordered this one, and boom — problem solved.

    It snaps right on, fits snug, and hasn’t blown off in a storm (yet). If you’ve got a drain pipe and don’t want a raccoon roommate, this little guy is your new best friend.
    Report
  • Moises
    5.0 out of 5 stars Muy buen producto
    Reviewed in Mexico on March 4, 2023
    Verified Purchase
    Excelente calidad
    Report