6″ Dura Slope Drainage Kit w/Ductile Iron Grates


Pre-sloped system by NDS.



NDS Duraslope installation
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 0.7% slope with rounded bottom, 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 channel drawingDura Slope™ channels are designed with the pre-installed ProFit™ locking system, which maintains structural integrity during installation and locking devices for the grating. LeveLoc™ integral re-bar supports are located at 24” intervals along each side of the channel and contain an internal protruding knob designed to grip #3 or #4 re-bar (3/8” – 1/2”) for easier channel height adjustment during installation. DuraLoc™ tongue and groove ends connect allowing for a precise fit and ensure straight channel runs, incorporating an integral snap-lock feature that prevents joint movement during channel installation.

For heavy trucks or fork truck traffic, we recommend adding the ductile iron frames to your kit.

Dura Slope in fire station

Uses: Garages, Driveways, Parking Lots, Public Areas, Swimming Pools, Recreational Areas
Channel Material: Structural foam polyethylene w/UV inhibitors
Clear Width: 4″ inside diameter w/2″ radius bottom
Total Width: 5.3″


  • Heavy Duty ductile iron slotted grates – (H-20 Load Rating)
  • Open Surface Area: 30.54 sq. inches
  • 40 GPM
  • Color: Black

Select your kit length to fit your situation.

Each Dura Slope Kit Includes:

  • 1 – 48″ Dura Slope channel for each 4ft. of kit length ordered
  • 2 – 2ft. ductile iron grates for each 4ft. of length ordered
  • 4 – Grate Locking Devices for each 4ft. of length ordered
  • 1 – End Outlet (fits 4″ S&D pipe)
  • 1 – End Cap
  • Screws for mounting end cap and end outlet
  • Installation instructions


  • Heavy Duty Ductile Iron Frames
    (includes screws to fasten to channel)

Dura Slope installationWe currently offer kit lengths up to 20ft. long. If you are needing a longer length,  you can order several kits to the length you need or contact us for a quote. We would be happy to provide one.

Layout Info:
Before we can ship your presloped drain order, a layout will need to be approved by you.  Once we receive your order, we will contact you via email with a layout drawing showing what channels you will receive and the order they need to be installed.  We will need a confirmation email from you that you accept the layout.

DrainageKits.com reserves the right to choose the channel depth of the channels you receive. If you have certain channels or a channel depth in mind, please note this in Order Notes at checkout.  We will do our best to accommodate you if the channels are in stock. Channels are shipped with installation covers that are to be in place during the concrete pour.

Shipping Info:
Shorter length kits will ship UPS. Longer length kits will ship truck freight. If the shipping calculator is not providing a shipping cost or if the price seems out of line, please contact us for a shipping price. For larger orders, please indicate in checkout notes whether shipping address is a commercial or residential location AND whether you have a forktruck and/or loading dock. For shipping to AK, HI, or Canada, please contact us.

Additional information

Weight N/A
Dimensions N/A
Kit Length

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No Frame, Ductile Iron Frame

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