NDS Dura SlopeRequest Quote Now

NDS Dura Slope with sand slotted plastic grate

The 6" Dura Slope by NDS is one of the most customizable plastic trench drains available for commercial projects. A lightweight HDPE drainage system, NDS Dura Slope sets high standards for chemical and load resistance.  Its four foot modular channel sections offer neutral and 0.7% slopes with rounded bottoms, creating an efficient water evacuation route for any application.  Each channel has a 4" bottom outlet knockout that provides a greater degree of design variability for the drainage system.

Dura Slope channels hook together without couplers, eliminating the need for small parts while giving the finished drain a neater, straighter appearance.  A Dura Slope catch basin (6.25" x 24" x 24") with trash basket is a popular accessory for many Dura Slope drainage systems.

NDS Dura Slope channel
NDS Dura Slope Cheat Sheet
Channel Length 4' (48”)
Channel Width (OD) 6-5/8"
Channel Width (ID) 4"
Outlet Sizes 4" S&D, 4" Sch. 40
Available Slope 0.7%
Max. Flow Rate 70 GPM, per foot

NDS Dura Slope plastic slotted grating color options The Dura Slope drainage system offers NDS’s largest selection of grating for residential and commercial applications.  Heel-proof grates are available in plastic, galvanized or stainless steel materials.  Dura Slope’s slotted plastic grates (available in white, gray, dark gray, green, black, sand and brick red colors) are both ADA compliant and capable of holding small vehicle traffic.  Dura Slope offers iron grates for commercial or industrial forklift traffic.

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Dura Slope EZ track radius coupling used at poolEZ Track

The Dura Slope product line includes EZ Track Radius couplings.  EZ Track radius couplings are designed for running track or poolside installations and are used with neutral or pre-sloped Dura Slope channel sections.  Each radius coupling allows 3 degrees of motion between trench drain sections, making an adjustable radius easily achievable.  The drain radii that can be achieved with the EZ Track coupling are between 80' and 120'.  Each coupling is supplied with an associated "mini grate section" that is made of plastic or ductile iron.

Cast Iron Grate Options

Dura Slope also features decorative iron grates by NDS and by IronAge Designs.  Both durable and decorative, NDS’s line of decorative grates for the Dura Slope are ADA Compliant and heelproof.  They are available in five patterns.  Finish options are raw, powder coated, or Baked On Oil Finish (BooF).

NDS cast iron decorative grate options
Iron Age grate, Locust pattern w/BooF, for the NDS Dura Slope systemNDS Dura Slope with deco Iron Age Interlaken grate

More Decorative Grate Options

Iron Age has two grate options, the Interlaken and Locust patterns, which are also offered with the same finish options.

NDS Dura Slope trench drain in fancy courtyard - Iron Age Interlaken pattern cast iron grates

Dura Slope Components

Dura Slope with white perforated grate - for pool deck drainTake a look at the Dura Slope System components listed below.  Click on a part number for a photograph.  Some system parts offer PDFs for download.  Also, you can view the complete Dura Slope Technical Specification booklet.  Any list pricing does not reflect the Trench Drain Systems discount offered to customers.

View the NDS Dura Slope standard grating PDF.

View the NDS Dura Slope decorative grating PDF.

View the NDS Dura Slope EZ-Track.

Part Number

Item Description



DS-090N/DS-114DS-090N/DS-114 Dura Slope Channel (6" x 48") - depth varies 7.45-18.4  
DS-122 Dura Slope ProFit Grate Lock 1.92  
DS-123 NDS Dura Slope Screw 6 x 3/4 Panhead 0.05  
DS-126 Dura Slope 4" Bottom Outlet Adapter 0.50  
DS-200H DS-200H DS-200H Dura Slope Black Ductile Iron Frame w/built-in locking devices 8.32 DS-200H
DS-221 DS-221 Dura Slope Galvanized Steel Channel Grate (6" x 24") 4.15  
DS-224 Dura Slope Universal End Cap 0.65  
DS-225 Dura Slope Stainless Steel Screws 1/4-20X21/2IN P/F/H 0.05  
DS-226 Dura Slope Stainless Steel Perforated Grate (6" x 24") 3.60  
DS-227 Dura Slope Universal End Outlet 0.85  
DS-228 Dura Slope Galvanized Steel Perforated Grate
(6" x 24")
DS-231 Dura Slope Cast Iron Slotted Grate (6" x 24") 15.50 Buy Now
DS-232 Dura Slope Ductile Iron Slotted Grate (6" x 24") 15.20 Buy Now
DS-240 Dura Slope Catch Basin Debris/Trash Bucket 4.50 240
DS-340 Dura Slope Catch Basin (6" x 24") 14.78 340
DS-601 Dura Slope Raw CI Deco - Weave Grate (6" x 24") 14.74  
DS-602 Dura Slope Raw CI Deco - Diamond Grate (6" x 24") 13.85  
DS-603 Dura Slope Raw CI Deco - Tile Grate (6" x 24") 13.76  
DS-604 Dura Slope Raw CI Deco - Brick Grate (6" x 24") 15.50  
DS-609 Dura Slope Raw CI Deco - Slot Grate (6" x 24") 15.50 Buy Now
DS-650 Dura Slope Grate Screws w/ Bit (Bag of 12) 0.05  
DS-660 Dura Slope White Plastic Slotted Grate (6" x 24") 2.92 Buy Now
DS-661 Dura Slope Gray Plastic Slotted Grate (6" x 24") 2.92 Buy Now
DS-661LG Dura Slope Light Gray Plastic Slotted Grate (6" x 24") 2.92 Buy Now
DS-662 Dura Slope Green Plastic Slotted Grate (6" x 24") 2.92 Buy Now
DS-663 Dura Slope Black Plastic Slotted Grate (6" x 24") 2.92 Buy Now
DS-664 Dura Slope Sand Plastic Slotted Grate (6" x 24") 2.92 Buy Now
DS-665 Dura Slope Brick Red Plastic Slotted Grate (6" x 24") 1.41 Buy Now
DS-670 Dura Slope Gray Plastic Perforated Grate (6" x 24") 3.00  
DS-671 Dura Slope White Plastic Perforated Grate (6" x 24") 1.43  
DSRC-097 6.35" Deep Neutral Dura Slope Radius Coupling
(also available in 7.36", 8.37", and 9.37")
IA-Inter-0624 Iron Age Interlaken pattern cast iron Grate (6" x 24") 12.0 Buy Now
IA-Loc-0624 Iron Age Locust pattern cast iron Grate (6" x 24") 13.7 Buy Now

Complete Dura Slope Kits up to 20 feet in length are available in our online store. Check out our complete kits with everything you need!

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Trench Drain Systems is a leading supplier of channel and trench drain from the top manufacturers in the drainage industry.  Our product lines include Polycast, NDS, MultiDrain, MEA, Zurn, J.R. Smith and Infinity Drain.  We carry drainage systems in a broad range of channel materials such as steel, concrete, fiberglass, HDPE, polymer concrete and cast iron. We also sell trench forming systems, such as EconoDrain, and slot drain systems.

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