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Drainage Kits
  • Shop All
  • Drainage Kits
    • Popular Manufacturers
      • TDS
      • NDS
      • POLYCAST®
      • ULMA
      • Zurn
      • All Manufacturers
    • Popular Drainage Systems
      • Dura Slope
      • Mini Channel
      • Polycast 600/700
      • Slim Channel
      • SS600
      • ULMA U100K(X)
      • All Drainage Systems
    • Channel Materials
      • Fiberglass
      • Plastic
      • Polymer Concrete
      • Stainless Steel
      • Pour in Place (Concrete)
      • All Channel Materials
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      • Load Class E
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      • All Load Classes
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    • Popular Manufacturers
      • TDS
      • Bronze Age
      • NDS
      • Polycast
      • Polylok
      • ULMA
      • Zurn
      • All Manufacturers
    • Popular Drainage Systems
      • Dura Slope
      • FP1200
      • Mini Channel
      • Polycast 600/700
      • Slim Channel
      • SS600
      • ULMA U100K(X)
      • All Drainage Systems
    • Grate Material
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      • Bronze
      • Ductile/Cast Iron
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      • Galvanized Steel
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  • MCK-BA-SLOT-0336 Grey NDS Mini Channel with Stainless Steel Transverse Slotted Grate

    NDS 3" Gray Mini Channel Kit with TDS Slotted Heel Proof Grate - 316L Stainless

    NDS 3" Gray Mini Channel Kit with TDS Slotted Heel Proof Grate - 316L Stainless

    Regular price From $306.44 USD
    Regular price Sale price From $306.44 USD
    Unit price /  per 
  • MCKS-BA-SLOT-D NDS Mini Channel in Sand with TDS Bronze Age Slot in Ductile Iron

    NDS 3" Sand Mini Channel Kit with TDS Bronze Age Slotted Grate - Ductile Iron

    NDS 3" Sand Mini Channel Kit with TDS Bronze Age Slotted Grate - Ductile Iron

    Regular price From $183.32 USD
    Regular price Sale price From $183.32 USD
    Unit price /  per 
  • NDS 229 Stainless Steel Screws

    NDS 229 Stainless Screws for Spee-D® Channel Slotted Grates (48 PCS)

    NDS 229 Stainless Screws for Spee-D® Channel Slotted Grates (48 PCS)

    Regular price $39.28 USD
    Regular price Sale price $39.28 USD
    Unit price /  per 
  • Slotted 609 grates in Dura Slope

    NDS® Dura Slope Kit with DS-609 Deco Slot Grate | RAW

    NDS® Dura Slope Kit with DS-609 Deco Slot Grate | RAW

    Regular price From $539.77 USD
    Regular price Sale price From $539.77 USD
    Unit price /  per 
  • PSRC-864 NDS

    NDS® PSRC-864 Qwick-Turn™ Radius Coupling w/ Slotted Grate

    NDS® PSRC-864 Qwick-Turn™ Radius Coupling w/ Slotted Grate

    Regular price $9.26 USD
    Regular price Sale price $9.26 USD
    Unit price /  per 
  • NDS 1222 12"x12" low profile catch basin that fits 8" corrugated pipe

    NDS 1222 Low Profile Adapter 12" x 12" for 8" Corrugated Pipe

    NDS 1222 Low Profile Adapter 12" x 12" for 8" Corrugated Pipe

    Regular price $65.28 USD
    Regular price Sale price $65.28 USD
    Unit price /  per 
  • MCK-BA-STAR-BF NDS Mini Channel in Grey with TDS Bronze Age BoOF Ductile Iron Stars Grates

    NDS® 3" Gray Mini Channel Kit with TDS Bronze Age™ Star Grate - BoOF

    NDS® 3" Gray Mini Channel Kit with TDS Bronze Age™ Star Grate - BoOF

    Regular price From $249.29 USD
    Regular price Sale price From $249.29 USD
    Unit price /  per 
  • NDS Sand Mini Channel with White Slotted Grate

    NDS 3" Sand Mini Channel Kit with NDS Slotted Grate - White

    NDS 3" Sand Mini Channel Kit with NDS Slotted Grate - White

    Regular price From $92.75 USD
    Regular price Sale price From $92.75 USD
    Unit price /  per 
  • MCKS-IA-RAIN-HP-BF NDS Mini Channel Kit in Sand with Heel Proof Iron Age Rain Grate in BoOF

    NDS 3″ Sand Mini Channel Kit with Iron Age Rain Grate – Baked on Oil Finish

    NDS 3″ Sand Mini Channel Kit with Iron Age Rain Grate – Baked on Oil Finish

    Regular price From $798.85 USD
    Regular price Sale price From $798.85 USD
    Unit price /  per 
  • NDS 253 - Box of 12 - Class B ADA Compliant Heel-Proof Wave HDPE 4" x 24" Grate -BLACK

    NDS 253 - Box of 12 - Class B ADA Compliant Heel-Proof Wave HDPE 4" x 24" Grate -BLACK

    NDS 253 - Box of 12 - Class B ADA Compliant Heel-Proof Wave HDPE 4" x 24" Grate -BLACK

    Regular price $665.06 USD
    Regular price Sale price $665.06 USD
    Unit price /  per 
  • NDS Pro Series 5 Slotted Brick Red Grate NDS 818

    NDS 818 Class B ADA Compliant Light Traffic HDPE 5" x 20" Grate - BRICK RED

    NDS 818 Class B ADA Compliant Light Traffic HDPE 5" x 20" Grate - BRICK RED

    Regular price $39.03 USD
    Regular price Sale price $39.03 USD
    Unit price /  per 
  • NDS 2350 Atrium outlet for Spee-D Channel

    NDS® 2350 Bottom Outlet 4" Atrium HDPE for NDS® Spee-D Channel

    NDS® 2350 Bottom Outlet 4" Atrium HDPE for NDS® Spee-D Channel

    Regular price $19.80 USD
    Regular price Sale price $19.80 USD
    Unit price /  per 
  • FWAS24WH NDS Flo-Well System Top Inlet

    NDS FWAS24WH Flo-Well Kit

    NDS FWAS24WH Flo-Well Kit

    Regular price $217.36 USD
    Regular price Sale price $217.36 USD
    Unit price /  per 
  • NDS-252-TDSdrains

    NDS 252 Class B ADA Compliant Heel-Proof Botanical HDPE 4" x 24" Grate - BLACK

    NDS 252 Class B ADA Compliant Heel-Proof Botanical HDPE 4" x 24" Grate - BLACK

    Regular price $55.42 USD
    Regular price Sale price $55.42 USD
    Unit price /  per 
  • DS-602-BF NDS Cast Iron Grate BoOF - Diamond

    NDS DS-602-BF Class C Diamond Ductile Iron 6" x 24" Grate - BoOF

    NDS DS-602-BF Class C Diamond Ductile Iron 6" x 24" Grate - BoOF

    Regular price $153.48 USD
    Regular price Sale price $153.48 USD
    Unit price /  per 
  • MCKS-BA-PED-D NDS Mini Channel in sand with TDS Bronze Age Pedreda Grate in Ductile Iron

    NDS 3" Sand Mini Channel Kit with TDS Bronze Age Pedreda Grate - Ductile Iron

    NDS 3" Sand Mini Channel Kit with TDS Bronze Age Pedreda Grate - Ductile Iron

    Regular price From $183.32 USD
    Regular price Sale price From $183.32 USD
    Unit price /  per 
  • NDS2411 NDS black plastic slotted grate for 24x24" catch basins

    NDS 2411 Class B Slotted HDPE 24" x 24" Grate - BLACK

    NDS 2411 Class B Slotted HDPE 24" x 24" Grate - BLACK

    Regular price $578.65 USD
    Regular price Sale price $578.65 USD
    Unit price /  per 
  • MCKS-541 Mini Channel Gray Slotted Grate

    NDS 3" Sand Mini Channel Kit with NDS Slotted Grate - Gray

    NDS 3" Sand Mini Channel Kit with NDS Slotted Grate - Gray

    Regular price From $92.75 USD
    Regular price Sale price From $92.75 USD
    Unit price /  per 
  • NDS ds-240 galv steel catch basin trash basket

    NDS DS-240 Debris Basket Galvanized

    NDS DS-240 Debris Basket Galvanized

    Regular price $235.17 USD
    Regular price Sale price $235.17 USD
    Unit price /  per 
  • Slim Channel 9303 Fabricated 45 Degree Angle with Gray Slotted Grate

    NDS 9303 Slim Channel 45 Degree Elbow with Gray Slotted Grate

    NDS 9303 Slim Channel 45 Degree Elbow with Gray Slotted Grate

    Regular price $40.42 USD
    Regular price Sale price $40.42 USD
    Unit price /  per 
  • NDS-Dura-XX-660-TDSdrains

    NDS® Dura Slope Kit with DS-660 HDPE Slotted Grate | White

    NDS® Dura Slope Kit with DS-660 HDPE Slotted Grate | White

    Regular price From $426.40 USD
    Regular price Sale price From $426.40 USD
    Unit price /  per 
  • NDS 1816 Catch Basin Riser

    NDS 1816 Catch Basin Riser for 18 x 18 NDS Catch Basin

    NDS 1816 Catch Basin Riser for 18 x 18 NDS Catch Basin

    Regular price $168.50 USD
    Regular price Sale price $168.50 USD
    Unit price /  per 
  • NDS-Dura-XX-601BF

    NDS® Dura Slope Kit with DS-601-BF Cast Iron Weave Grate - BoOF

    NDS® Dura Slope Kit with DS-601-BF Cast Iron Weave Grate - BoOF

    Regular price From $592.57 USD
    Regular price Sale price From $592.57 USD
    Unit price /  per 
  • nds828

    NDS 828 Class C H-20 Slotted High Impact Nylon 5" x 20" Grate

    NDS 828 Class C H-20 Slotted High Impact Nylon 5" x 20" Grate

    Regular price $176.57 USD
    Regular price Sale price $176.57 USD
    Unit price /  per 
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Resources

Shipping / Returns

Determining Your Grate Size

Load Class Chart

Installer Map

Drainage News

  • How Do You Clean Out a Trench Drain Without Damaging It?

    May 27, 2026
  • What is Load Class and Why Is It Important?

    Feb 23, 2024
  • Keeping Livestock Safe – Grate Ideas

    Feb 02, 2024
  • TDS Bronze Age™ Collection

    Oct 31, 2023

On Sale

  • ULMA HYDROPLUS Mini w/ BARS Ductile Iron Grate Class C

    ULMA HYDROPLUS Mini w/ BARS Ductile Iron Grate Class C

    $237.16 $183.00
  • ULMA HYDROPLUS Mini w/ FERN Ductile Iron Grate Class C

    ULMA HYDROPLUS Mini w/ FERN Ductile Iron Grate Class C

    $237.16 $183.00
  • ULMA HYDROPLUS Mini w/ CATHEDRAL Ductile Iron Grate Class C

    ULMA HYDROPLUS Mini w/ CATHEDRAL Ductile Iron Grate Class C

    $237.16 $183.00
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