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  • 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
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      • Plastic
      • Polymer Concrete
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      • Pour in Place (Concrete)
      • All Channel Materials
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      • All Load Classes
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      • TDS
      • Bronze Age
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      • 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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      • Ductile/Cast Iron
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  • NDS-speeD400-251-TDSdrains

    NDS Spee-D® Channel w/ 251 Slotted HDPE 4"x24" Brick Red Grate

    NDS Spee-D® Channel w/ 251 Slotted HDPE 4"x24" Brick Red Grate

    Regular price From $131.69 USD
    Regular price Sale price From $131.69 USD
    Unit price /  per 
  • Spee-D Channel w/254 Gal grate

    NDS Spee-D® Channel w/ 254 Galvanized 4"x24" Slotted Grate

    NDS Spee-D® Channel w/ 254 Galvanized 4"x24" Slotted Grate

    Regular price From $146.92 USD
    Regular price Sale price From $146.92 USD
    Unit price /  per 
  • NDS-speeD400-252GR-TDSdrains NDS Spee-D Channel with botanical grates in green

    NDS Spee-D® Channel w/ 252GR Botanical HDPE 4"x24" Green Grate

    NDS Spee-D® Channel w/ 252GR Botanical HDPE 4"x24" Green Grate

    Regular price From $118.83 USD
    Regular price Sale price From $118.83 USD
    Unit price /  per 
  • NDS-speeD400-252S-TDSdrains

    NDS Spee-D® Channel w/ 252S Botanical HDPE 4"x24" Sand Grate

    NDS Spee-D® Channel w/ 252S Botanical HDPE 4"x24" Sand Grate

    Regular price From $115.58 USD
    Regular price Sale price From $115.58 USD
    Unit price /  per 
  • NDS-244-TDSdrains

    NDS 244 Class B ADA Compliant Slotted HDPE 4" x 24" Grate - SAND

    NDS 244 Class B ADA Compliant Slotted HDPE 4" x 24" Grate - SAND

    Regular price $33.30 USD
    Regular price Sale price $33.30 USD
    Unit price /  per 
  • NDS-243-TDSdrains

    NDS 243 Class B ADA Compliant Slotted HDPE 4" x 24" Grate - BLACK

    NDS 243 Class B ADA Compliant Slotted HDPE 4" x 24" Grate - BLACK

    Regular price $38.43 USD
    Regular price Sale price $38.43 USD
    Unit price /  per 
  • NDS-Spee-D-channel-Botanical

    NDS Spee-D® Channel w/ 252CI Botanical Cast Iron 4"x24" RAW Grate

    NDS Spee-D® Channel w/ 252CI Botanical Cast Iron 4"x24" RAW Grate

    Regular price From $234.28 USD
    Regular price Sale price From $234.28 USD
    Unit price /  per 
  • NDS-speeD400-242-TDSdrains NDS Spee-D with green slot grate

    NDS Spee-D® Channel w/ 242 Slotted HDPE 4"x24" Green Grate

    NDS Spee-D® Channel w/ 242 Slotted HDPE 4"x24" Green Grate

    Regular price From $128.70 USD
    Regular price Sale price From $128.70 USD
    Unit price /  per 
  • NDS 254 Galvanized Steel Slotted Grates

    NDS 254 Galvanized Slotted 4" x 24" Class B Grate

    NDS 254 Galvanized Slotted 4" x 24" Class B Grate

    Regular price $56.66 USD
    Regular price Sale price $56.66 USD
    Unit price /  per 
  • NDS-241LG-TDSdrains

    NDS 241 Class B ADA Compliant Slotted HDPE 4" x 24" (Nominal) Grate - GRAY

    NDS 241 Class B ADA Compliant Slotted HDPE 4" x 24" (Nominal) Grate - GRAY

    Regular price $34.34 USD
    Regular price Sale price $34.34 USD
    Unit price /  per 
  • 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 
  • NDS-240-TDSdrains

    NDS 240 Class B ADA Compliant Slotted HDPE 4" x 24" Grate - WHITE

    NDS 240 Class B ADA Compliant Slotted HDPE 4" x 24" Grate - WHITE

    Regular price $38.43 USD
    Regular price Sale price $38.43 USD
    Unit price /  per 
  • 9373 NDS Slim Channel 90 Degree Angle with Gray Slotted Grate

    NDS 9383 Slim Channel 90 Degree Elbow with Gray Slotted Grate

    NDS 9383 Slim Channel 90 Degree Elbow with Gray Slotted Grate

    Regular price $41.49 USD
    Regular price Sale price $41.49 USD
    Unit price /  per 
  • NDS242-green-slotted-grate Spee-D channel

    NDS 242 Class B ADA Compliant Slotted HDPE 4" x 24" Grate - GREEN

    NDS 242 Class B ADA Compliant Slotted HDPE 4" x 24" Grate - GREEN

    Regular price $38.43 USD
    Regular price Sale price $38.43 USD
    Unit price /  per 
  • MCKS-BA-SLOT-0336 Sand Mini Channel with Transverse Slotted Stainless Steel Grates

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

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

    Regular price From $312.47 USD
    Regular price Sale price From $312.47 USD
    Unit price /  per 
  • NDS-252GR-TDSdrains NDS Spee-D Channel Grate in green botanical

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

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

    Regular price $58.67 USD
    Regular price Sale price $58.67 USD
    Unit price /  per 
  • NDS-2361 Cross

    Cross for NDS® Spee-D Channel - Slotted Grate

    Cross for NDS® Spee-D Channel - Slotted Grate

    Regular price $153.74 USD
    Regular price Sale price $153.74 USD
    Unit price /  per 
  • Spee-D BA Square Deco Stainless Steel Grate

    Bronze Age™ TDS-DECO-0424-S 304 Stainless Steel 4.09" x 24" Grate

    Bronze Age™ TDS-DECO-0424-S 304 Stainless Steel 4.09" x 24" Grate

    Regular price $156.20 USD
    Regular price Sale price $156.20 USD
    Unit price /  per 
  • NDS-251-TDSdrains

    NDS 251 Class B ADA Compliant Slotted HDPE 4" x 24" Grate - BRICK RED

    NDS 251 Class B ADA Compliant Slotted HDPE 4" x 24" Grate - BRICK RED

    Regular price $41.42 USD
    Regular price Sale price $41.42 USD
    Unit price /  per 
  • MCK-BA-FOAM-0336 Grey NDS Mini Channel with Stainless Steel Perforated Foam Grate

    NDS 3" Gray Mini Channel Kit w/ TDS Perforated Foam Heel Proof Grate - 316 Stainless

    NDS 3" Gray Mini Channel Kit w/ TDS Perforated Foam Heel Proof Grate - 316 Stainless

    Regular price From $306.44 USD
    Regular price Sale price From $306.44 USD
    Unit price /  per 
  • Spee-D BA Transverse Slotted Stainless Steel Grate

    Bronze Age TDS-SLOT-0448-S 304 Stainless Steel 4.09" x 48" (Nominal) Grate

    Bronze Age TDS-SLOT-0448-S 304 Stainless Steel 4.09" x 48" (Nominal) Grate

    Regular price $312.39 USD
    Regular price Sale price $312.39 USD
    Unit price /  per 
  • Spee-D BA Square Deco Stainless Steel Grate

    Bronze Age TDS-DECO-0448-S 304 Stainless Steel 4.09" x 48" (Nominal) Grate

    Bronze Age TDS-DECO-0448-S 304 Stainless Steel 4.09" x 48" (Nominal) Grate

    Regular price $312.39 USD
    Regular price Sale price $312.39 USD
    Unit price /  per 
  • MCKs-BA-FOAM-0336 Sand Mini Channel with Perforated Foam Stainless Steel Grates

    NDS® Sand Mini Channel Kit w/Foam 316 Stainless Steel HP Grates

    NDS® Sand Mini Channel Kit w/Foam 316 Stainless Steel HP Grates

    Regular price From $312.47 USD
    Regular price Sale price From $312.47 USD
    Unit price /  per 
  • NDS 251 - Box of 12 - Class B ADA Compliant Slotted HDPE 4" x 24" Grate - BRICK RED

    NDS 251 - Box of 12 - Class B ADA Compliant Slotted HDPE 4" x 24" Grate - BRICK RED

    NDS 251 - Box of 12 - Class B ADA Compliant Slotted HDPE 4" x 24" Grate - BRICK RED

    Regular price $497.05 USD
    Regular price Sale price $497.05 USD
    Unit price /  per 
  • grey wave mini channel NDS

    NDS 253GY Class B ADA Compliant Wave HDPE 4" x 24" (Nominal) Grate - GRAY

    NDS 253GY Class B ADA Compliant Wave HDPE 4" x 24" (Nominal) Grate - GRAY

    Regular price $55.42 USD
    Regular price Sale price $55.42 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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