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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
    • Load Class
      • Load Class A
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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
      • Fiberglass
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Products Blogs
  • NDS-Dura-XX-665-TDSdrains NDS Dura Slope with Brick Red 665 Grates

    NDS Dura Slope Kit with DS-665 HDPE Slotted Grate | Brick Red

    NDS Dura Slope Kit with DS-665 HDPE Slotted Grate | Brick Red

    Regular price From $426.40 USD
    Regular price Sale price From $426.40 USD
    Unit price /  per 
  • NDS 555GY - Box of 16 - Class B ADA Compliant Wave Polyolefin 3" x 36" Grate - GRAY

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

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

    Regular price $596.74 USD
    Regular price Sale price $596.74 USD
    Unit price /  per 
  • NDS5303 Grey 45 deg Slotted Sand

    NDS 5303 Mini Channel 45 Degree Elbow with Gray Channel and Sand Slotted Grate

    NDS 5303 Mini Channel 45 Degree Elbow with Gray Channel and Sand Slotted Grate

    Regular price $55.93 USD
    Regular price Sale price $55.93 USD
    Unit price /  per 
  • POLY600-DG0620-GE Cathedral Galv

    POLYCAST 600 Series Kit with DG0620 Galvanized Grate w/ Edging | Load Class A

    POLYCAST 600 Series Kit with DG0620 Galvanized Grate w/ Edging | Load Class A

    Regular price From $280.85 USD
    Regular price Sale price From $280.85 USD
    Unit price /  per 
  • DS 232

    NDS® DS-232 Class D ADA-Compliant Slotted Ductile Iron 6" x 24" Grate

    NDS® DS-232 Class D ADA-Compliant Slotted Ductile Iron 6" x 24" Grate

    Regular price $94.81 USD
    Regular price Sale price $94.81 USD
    Unit price /  per 
  • BA-SLOT-0336 Stainless Steel Slot 3x36

    Bronze Age TDS-SLOT-0336-L Slotted 316L Stainless Steel 3″x36″ Grate Load Class B

    Bronze Age TDS-SLOT-0336-L Slotted 316L Stainless Steel 3″x36″ Grate Load Class B

    Regular price $249.00 USD
    Regular price Sale price $249.00 USD
    Unit price /  per 
  • DS-609-Deco-Slotted-CI-grate dura slope NDS cast iron grate

    NDS DS-609 Class C Slotted Ductile Iron 6" x 24" Grate - RAW

    NDS DS-609 Class C Slotted Ductile Iron 6" x 24" Grate - RAW

    Regular price $127.08 USD
    Regular price Sale price $127.08 USD
    Unit price /  per 
  • NDS-253GR Green wave Spee-D

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

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

    Regular price $37.30 USD
    Regular price Sale price $37.30 USD
    Unit price /  per 
  • NDS-Dura-DI-232-TDSdrains

    NDS® Dura Slope Kit with DS-232 Ductile Iron Grate and Frame

    NDS® Dura Slope Kit with DS-232 Ductile Iron Grate and Frame

    Regular price From $624.96 USD
    Regular price Sale price From $624.96 USD
    Unit price /  per 
  • IA-Oblio-0418-hp

    Iron Age IA-OBLIO-0418-HP Class A Heel-Proof OBLIO Cast Iron 4" x 18" Grate - RAW

    Iron Age IA-OBLIO-0418-HP Class A Heel-Proof OBLIO Cast Iron 4" x 18" Grate - RAW

    Regular price $147.29 USD
    Regular price Sale price $147.29 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 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 
  • NDS5300-45elbow-grey

    NDS 5300 Mini Channel 45 Degree Elbow with Gray Channel and Slotted Grate

    NDS 5300 Mini Channel 45 Degree Elbow with Gray Channel and Slotted Grate

    Regular price $55.93 USD
    Regular price Sale price $55.93 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 
  • Stainless Steel Perforated 3 inch Mini Channel Grate

    Perforated 316 Stainless Steel Grate 3″x36″ Load Class B

    Perforated 316 Stainless Steel Grate 3″x36″ Load Class B

    Regular price $249.00 USD
    Regular price Sale price $249.00 USD
    Unit price /  per 
  • 2381-Gray-90-deg Spee-D Channel NDS

    NDS 2381 Corner 90 Degree Elbow for NDS Spee-D Channel

    NDS 2381 Corner 90 Degree Elbow for NDS Spee-D Channel

    Regular price $64.46 USD
    Regular price Sale price $64.46 USD
    Unit price /  per 
  • NDS1815 Grate in Galvanized for 18x18" catch basins

    NDS 1815 Class C 18" Galvanized Grate

    NDS 1815 Class C 18" Galvanized Grate

    Regular price $726.28 USD
    Regular price Sale price $726.28 USD
    Unit price /  per 
  • NDS Dura Slope channel with White perforated grate NDS671

    NDS® Dura Slope Kit with DS-671 Perforated Grate | White

    NDS® Dura Slope Kit with DS-671 Perforated Grate | White

    Regular price From $426.41 USD
    Regular price Sale price From $426.41 USD
    Unit price /  per 
  • 410 GP100KCA new perforated galv. steel with tread grate

    ULMA 410 Class A Perforated w/Tread Galvanized Steel 122mm x 1M Grate

    Sale

    ULMA 410 Class A Perforated w/Tread Galvanized Steel 122mm x 1M Grate

    Regular price $17.36 USD
    Regular price $24.80 USD Sale price $17.36 USD
    Unit price /  per 
    Sale
  • BA-PED-0312-D TDS Bronze Age Pedreda grate in Ductile Iron

    Bronze Age™ BA-PED-0312-D Ductile Iron 3" x 12" Grate - RAW

    Bronze Age™ BA-PED-0312-D Ductile Iron 3" x 12" Grate - RAW

    Regular price $39.95 USD
    Regular price Sale price $39.95 USD
    Unit price /  per 
  • ULMA D100 with 410 perforated stainless steel grate

    ULMA D100 Drain Channel w/410 Perforated w/Tread Galvanized Grate - Class A

    Sale

    ULMA D100 Drain Channel w/410 Perforated w/Tread Galvanized Grate - Class A

    Regular price From $249.86 USD
    Regular price $262.54 USD Sale price From $249.86 USD
    Unit price /  per 
    Sale
  • ULMA D100_462G Gatic Grate

    ULMA D100 Drain Channel w/ TDS 462G Slotted Ductile Iron Grate - Class D

    ULMA D100 Drain Channel w/ TDS 462G Slotted Ductile Iron Grate - Class D

    Regular price From $330.71 USD
    Regular price Sale price From $330.71 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 
  • 9372 NDS Slim Channel Tee with Sand Slotted Grate

    NDS 9372 Slim Channel TEE with Slotted Grate - SAND

    NDS 9372 Slim Channel TEE with Slotted Grate - SAND

    Regular price $48.75 USD
    Regular price Sale price $48.75 USD
    Unit price /  per 
  • RG-151224-AB

    RG-151224-AB Heavy Duty Ductile Iron Slotted 12″ x 24″ x 1.5″ Grate | TDS

    RG-151224-AB Heavy Duty Ductile Iron Slotted 12″ x 24″ x 1.5″ Grate | TDS

    Regular price $217.44 USD
    Regular price Sale price $217.44 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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