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Model # TR1-GRAY

Internet # 203463476

36 in. Trench Drain with Gray Grate

This item has been discontinued.
The Home Depot no longer carries this specific product.

$61.45 /each




Model # TR1-GRAY

Internet # 203463476

36 in. Molded trench drain with ADA compliant grate. Fully assembled with stainless steel screws. Multiple units snap together to form longer lengths. Can also be cut to size. Connect 2 in., 3 in., or 4 in. Schedule 40 or 4 in. SDR35 pipe to bottom of drain. Use MF-4 connector (sold separately) to connect 4 in, corrugated pipe to bottom of TR1. Add TR1-D4 (sold separately) to drain from end using 4 in. SDR35 pipe or 4 in. corrugated pipe (with MF-4 connector also sold separately). Install in garage or factory floors, driveways, loading docks, or around swimming pools.

  • H-20 (235 psi) heavy duty wheel load rated
  • Molded-In ribs for exceptional vertical compressive strength
  • Non-Corrosive polymer construction
  • UV resistant
  • Made in U.S.A

Info & Guides

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Fitting size 
Product Depth (in.) 
Product Height (in.) 
Product Length (in.) 
Product Width (in.) 
Compatible Pipe Material 
Fitting or Connector Type 
Pipe or Fitting Product Type 
Fittings & Connectors 
Product Weight (lb.) 
6.725 lb 
Push to connect 
Warranty / Certifications
Manufacturer Warranty 
Free from manufacturing defects and fit for intended purpose for 1 year from date of purchase 


Rated 4.6 out of 5 by 8 reviewers.
Rated 4.0 out of 5.0 by Well made for plastic I purchased two of these drains to install for a customer, in an existing garage floor. Of course cutting the hole was the most difficult part. I then removed the sand from below and replaced it with gravel for better water flow. These drains have multiple "knockouts" in the base for various size pipes if you wish to run them outside etc. I was not adding any pipe so I knocked out both knockouts, one at each end. I removed the top grates before pouring concrete around the perimeter. I noticed that they used stainless steel screws to hold the grates on and that adds to the quality, as well as being made from a very sturdy plastic. Very happy with how it turned out and would use and recommend these. October 7, 2014
Rated 5.0 out of 5.0 by Material comment The Trench Drain sold on-line requires no glue. It snaps together in a tougue and groove fashion and holds firmly. The product is then encapsulated in concrete and is "permanently" held in place. Simple, easy, effective. Once installed in concrete you can drive a truck over it according to the brochure. Great product. March 5, 2013
Rated 3.0 out of 5.0 by This is NOT the same model they sell in the stores!!!! BEWARE ! ! ! The unit they sell in the stores is completely different make/model. The 5" unit in the stores is made of POLYPROPYLENE. This material is impossible to glue together properly. I guess if you put it outside imbedded in cement it doesn't matter but if you want to put it somewhere that you want no leak, then make sure you buy one MADE OUT OF PVC The company that makes the one in the stores makes ALL their other widths out of PVC, only the 5" is made of POLY! Read: CHEAPO! November 5, 2012
Rated 5.0 out of 5.0 by Seems well made Just dug a ditch and dropped in. Appears to be well made. Flanges on either side as well as holes for large landscaping nails should ensure it stays in place. November 6, 2012
Rated 5.0 out of 5.0 by Easy to install The drain installed easily. The removable end caps made it easy to cut out an end piece (wish they had included knock-outs at the end caps). June 25, 2013
Rated 5.0 out of 5.0 by Durable Trench Drain I had a 50' concrete driveway poured and needed a way to move the water away so it wouldn't end up in the building. This trench drain is heavy duty and should last a long time. My concrete contractor who installed it liked the ability to secure it in place with rebar and said the installation was pretty easy. It does a great job of moving the water and is tough enough to park on. December 9, 2014
Rated 5.0 out of 5.0 by Awesome Product! The drain was very easy to assemble. Don't forget the attachment for the side to hook the pipe up. It was also very user friendly with the concrete crew. All you had to do was set the drain in place and anchor with metal stakes. Very good product. The product was a little pricey to do a 16ft span in front of a garage door. However, it works great and it is nice and sturdy. April 14, 2015
Rated 5.0 out of 5.0 by 36 in. Trench Drain it is easy to installed, and my patio looks beautiful. February 9, 2015
  • 2015-10-05T14:29:18.309-05:00
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