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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 A
      • Load Class B
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      • Load Class D
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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
      • Fiberglass
      • Galvanized Steel
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  • DS-609-BF NDS Cast Iron Grate BoOF - Slotted

    NDS DS-609-BF Class C Deco Slot Cast Iron 6" x 24" Grate - BoOF

    NDS DS-609-BF Class C Deco Slot Cast Iron 6" x 24" Grate - BoOF

    Regular price $154.68 USD
    Regular price Sale price $154.68 USD
    Unit price /  per 
  • NDS 552B Satin Brass 3x12" grate

    NDS 552B Class A ADA Compliant Slotted Satin Brass 3" x 12" Grate

    NDS 552B Class A ADA Compliant Slotted Satin Brass 3" x 12" Grate

    Regular price $225.31 USD
    Regular price Sale price $225.31 USD
    Unit price /  per 
  • NDS 554GY - Box of 16 - Class B ADA Compliant Botanical Polyolefin 3" x 36" Grate - GRAY

    NDS 554GY - Box of 16 - Class B ADA Compliant Botanical Polyolefin 3" x 36" Grate - GRAY

    NDS 554GY - Box of 16 - Class B ADA Compliant Botanical Polyolefin 3" x 36" Grate - GRAY

    Regular price $596.74 USD
    Regular price Sale price $596.74 USD
    Unit price /  per 
  • MCKS-IA-Min-DK Iron Age cast iron deco minnione raw grate mini channel

    NDS 3" Sand Mini Channel Kit with Iron Age Minnione Grate - Natural

    NDS 3" Sand Mini Channel Kit with Iron Age Minnione Grate - Natural

    Regular price From $618.67 USD
    Regular price Sale price From $618.67 USD
    Unit price /  per 
  • NDS 555GR - Box of 16 - Class B ADA Compliant Wave Polyolefin 3" x 36" Grate - GREEN

    NDS 555GR - Box of 16 - Class B ADA Compliant Wave Polyolefin 3" x 36" Grate - GREEN

    NDS 555GR - Box of 16 - Class B ADA Compliant Wave Polyolefin 3" x 36" Grate - GREEN

    Regular price $596.74 USD
    Regular price Sale price $596.74 USD
    Unit price /  per 
  • NDS 554S - Box of 16 - Class B ADA Compliant Botanical Polyolefin 3" x 36" Grate - SAND

    NDS 554S - Box of 16 - Class B ADA Compliant Botanical Polyolefin 3" x 36" Grate - SAND

    NDS 554S - Box of 16 - Class B ADA Compliant Botanical Polyolefin 3" x 36" Grate - SAND

    Regular price $596.74 USD
    Regular price Sale price $596.74 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 
  • nds540-white-slotted-grate-TDS

    NDS 540 Class B ADA Compliant Heel-Proof HDPE 3" x 36" Grate - WHITE

    NDS 540 Class B ADA Compliant Heel-Proof HDPE 3" x 36" Grate - WHITE

    Regular price $29.28 USD
    Regular price Sale price $29.28 USD
    Unit price /  per 
  • NDS 554CI Cast Iron BOOF 3x12 botanical grate

    NDS 554CI-BF Class B ADA Compliant Botanical Cast Iron 3" x 12" Grate - BoOF

    NDS 554CI-BF Class B ADA Compliant Botanical Cast Iron 3" x 12" Grate - BoOF

    Regular price $93.76 USD
    Regular price Sale price $93.76 USD
    Unit price /  per 
  • NDS 554CI Class B ADA Compliant Botanical Cast Iron 3" x 12" Grate - RAW

    NDS 554CI Class B ADA Compliant Botanical Cast Iron 3" x 12" Grate - RAW

    NDS 554CI Class B ADA Compliant Botanical Cast Iron 3" x 12" Grate - RAW

    Regular price $78.76 USD
    Regular price Sale price $78.76 USD
    Unit price /  per 
  • ULMA U100K with 486 Vinyl Ester 0.9 FRP Grate

    ULMA U100K Drainage Kit with TDS Vinyl Ester Bar Grate 0.9″ on center - Class B

    Sale

    ULMA U100K Drainage Kit with TDS Vinyl Ester Bar Grate 0.9″ on center - Class B

    Regular price From $450.41 USD
    Regular price $569.10 USD Sale price From $450.41 USD
    Unit price /  per 
    Sale
  • MMG-SB-CATH

    TDS™ 3" Gray MAX Mini w/ Natural Bronze Cathedral Grate & Satin Bronze Edge

    TDS™ 3" Gray MAX Mini w/ Natural Bronze Cathedral Grate & Satin Bronze Edge

    Regular price From $1,033.59 USD
    Regular price Sale price From $1,033.59 USD
    Unit price /  per 
  • NDS-Dura-662-TDSdrains green slotted grate

    NDS® DS-662 Class B ADA Compliant Slotted Polyolefin 6" x 24" Grate - GREEN

    NDS® DS-662 Class B ADA Compliant Slotted Polyolefin 6" x 24" Grate - GREEN

    Regular price $70.40 USD
    Regular price Sale price $70.40 USD
    Unit price /  per 
  • NDS 555 - Box of 16 - Class B ADA Compliant Wave Polyolefin 3" x 36" Grate - BLACK

    NDS 555 - Box of 16 - Class B ADA Compliant Wave Polyolefin 3" x 36" Grate - BLACK

    NDS 555 - Box of 16 - Class B ADA Compliant Wave Polyolefin 3" x 36" Grate - BLACK

    Regular price $596.76 USD
    Regular price Sale price $596.76 USD
    Unit price /  per 
  • Dura-DecoSlotted-Grate-TDSdrains dura slope deco cast iron grate

    NDS® DS-604 Class C Brick Ductile Iron 6" x 24" Grate - RAW

    NDS® DS-604 Class C Brick Ductile Iron 6" x 24" Grate - RAW

    Regular price $127.08 USD
    Regular price Sale price $127.08 USD
    Unit price /  per 
  • Natural Locust in Grey Mini Channel

    NDS 3" Gray Mini Channel Kit with Iron Age Locust Grate - Natural

    NDS 3" Gray Mini Channel Kit with Iron Age Locust Grate - Natural

    Regular price From $612.82 USD
    Regular price Sale price From $612.82 USD
    Unit price /  per 
  • NDS-Dura-665-TDSdrains brick red slotted

    NDS DS-665 Class B ADA Compliant Slotted Polyolefin 6" x 24" Grate - BRICK RED

    NDS DS-665 Class B ADA Compliant Slotted Polyolefin 6" x 24" Grate - BRICK RED

    Regular price $70.40 USD
    Regular price Sale price $70.40 USD
    Unit price /  per 
  • BA-PED-0312-BF TDS Bronze Age Pedreda BoOF grate

    Bronze Age™ BA-PED-0312-BF Ductile Iron 3″ x 12″ Grate -BoOF

    Bronze Age™ BA-PED-0312-BF Ductile Iron 3″ x 12″ Grate -BoOF

    Regular price $64.95 USD
    Regular price Sale price $64.95 USD
    Unit price /  per 
  • nds542-green-slotted-grate-TDS

    NDS 542 Class B ADA Compliant Heel-Proof HDPE 3" x 36" Grate - GREEN

    NDS 542 Class B ADA Compliant Heel-Proof HDPE 3" x 36" Grate - GREEN

    Regular price $29.28 USD
    Regular price Sale price $29.28 USD
    Unit price /  per 
  • ULMA D100-494

    ULMA D100 Drain Channel w/494 Slotted Plastic Grate - Class A

    Sale

    ULMA D100 Drain Channel w/494 Slotted Plastic Grate - Class A

    Regular price From $281.80 USD
    Regular price $301.12 USD Sale price From $281.80 USD
    Unit price /  per 
    Sale
  • BA-DECO-0336 Stainless Steel Slot 3x36

    Bronze Age™ TDS-DECO-0312-L Square Deco 316L Stainless Steel 3″x12″ Grate

    Bronze Age™ TDS-DECO-0312-L Square Deco 316L Stainless Steel 3″x12″ Grate

    Regular price $83.00 USD
    Regular price Sale price $83.00 USD
    Unit price /  per 
  • ULMA D100-461

    ULMA D100 Drain Channel w/461D Slotted Ductile Iron Grate - Class E

    Sale

    ULMA D100 Drain Channel w/461D Slotted Ductile Iron Grate - Class E

    Regular price From $318.27 USD
    Regular price $348.01 USD Sale price From $318.27 USD
    Unit price /  per 
    Sale
  • NDS 541 - Box of 16 - Class B ADA Compliant Slotted HDPE 3" x 36" Grate - GREY

    NDS 541 - Box of 16 - Class B ADA Compliant Slotted HDPE 3" x 36" Grate - GREY

    NDS 541 - Box of 16 - Class B ADA Compliant Slotted HDPE 3" x 36" Grate - GREY

    Regular price $468.47 USD
    Regular price Sale price $468.47 USD
    Unit price /  per 
  • Mini-550-bottom-outlet-TDSdrains

    NDS 550 Mini Channel 3" x 36" with Bottom Outlet – GRAY

    NDS 550 Mini Channel 3" x 36" with Bottom Outlet – GRAY

    Regular price $59.72 USD
    Regular price Sale price $59.72 USD
    Unit price /  per 
  • NDS-Dura-XX-662-TDSdrains

    NDS® Dura Slope Kit with DS-662 HDPE Slotted Grate | Green

    NDS® Dura Slope Kit with DS-662 HDPE Slotted Grate | Green

    Regular price From $426.40 USD
    Regular price Sale price From $426.40 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 424 / GN100KCC, Class C, Slotted Reinforced Galvanized Steel 124mm x 1M Grate

    ULMA 424 / GN100KCC, Class C, Slotted Reinforced Galvanized Steel 124mm x 1M Grate

    $80.36 $62.50
  • ULMA 420 / GN100KCA, Class A, Slotted Galvanized Steel 122mm x 1M Grate

    ULMA 420 / GN100KCA, Class A, Slotted Galvanized Steel 122mm x 1M Grate

    $37.45 $26.22
  • LD100X-2 Locking Device for ULMA Grates

    LD100X-2 Locking Device for ULMA Grates

    $12.96 $10.08
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