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Drainage Kits
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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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      • Fiberglass
      • Plastic
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      • Pour in Place (Concrete)
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      • All Load Classes
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    • Popular Manufacturers
      • TDS
      • Bronze Age
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      • 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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  • NDS500S-BA-BARS-D Ductile Iron Black

    NDS® 3" Sand Mini Channel Kit with TDS Bronze Age™ Bars Grate - Ductile Iron

    NDS® 3" Sand Mini Channel Kit with TDS Bronze Age™ Bars Grate - Ductile Iron

    Regular price From $183.32 USD
    Regular price Sale price From $183.32 USD
    Unit price /  per 
  • Zurn-Z886-HDS Heavy Duty Stainless Steel Frame

    P886-HDS Stainless Steel Frame for ZURN Z886

    P886-HDS Stainless Steel Frame for ZURN Z886

    Regular price $824.80 USD
    Regular price Sale price $824.80 USD
    Unit price /  per 
  • Iron Age BoOF Acanthus Grate in Sand Mini Channel MCKS-IA-Aca-BF

    NDS 3" Sand Mini Channel Kit with Iron Age Acanthus Grate - Baked on Oil Finish

    NDS 3" Sand Mini Channel Kit with Iron Age Acanthus Grate - Baked on Oil Finish

    Regular price From $833.17 USD
    Regular price Sale price From $833.17 USD
    Unit price /  per 
  • MCKS-IA-QUE-HP-BF sand Mini Channel w/ BoOF Que grate

    NDS 3" Sand Mini Channel Kit with Iron Age QUE Cast Iron Grate - Baked on Oil Finish

    NDS 3" Sand Mini Channel Kit with Iron Age QUE Cast Iron Grate - Baked on Oil Finish

    Regular price From $833.17 USD
    Regular price Sale price From $833.17 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 
  • 454 IN100KCC Reinforced SS Slotted

    ULMA 454 / IN100KCC Reinforced Stainless Steel Slotted Grate 1M Class C

    Sale

    ULMA 454 / IN100KCC Reinforced Stainless Steel Slotted Grate 1M Class C

    Regular price $289.88 USD
    Regular price $372.71 USD Sale price $289.88 USD
    Unit price /  per 
    Sale
  • POLY700-AA-641D-TDSdrains cast iron frame ductile iron slotted grate polymer concrete channel Polycast

    POLYCAST 700 Series Kit w/ DG0641D Slotted Ductile Iron Grate & Frame

    POLYCAST 700 Series Kit w/ DG0641D Slotted Ductile Iron Grate & Frame

    Regular price From $286.76 USD
    Regular price Sale price From $286.76 USD
    Unit price /  per 
  • POLY700-PE-657R

    POLYCAST® 700 Kit w/DG0657R Stainless Perforated Grate & HDPE Frame

    POLYCAST® 700 Kit w/DG0657R Stainless Perforated Grate & HDPE Frame

    Regular price From $532.41 USD
    Regular price Sale price From $532.41 USD
    Unit price /  per 
  • MMG-SS-CATH MAX Mini kit with gray channel and stainless steel grate

    TDS™ 3" Gray MAX Mini w/Cathedral HP 316L Stainless Steel Grate & Stainless Steel Edge

    TDS™ 3" Gray MAX Mini w/Cathedral HP 316L Stainless Steel Grate & Stainless Steel Edge

    Regular price From $704.11 USD
    Regular price Sale price From $704.11 USD
    Unit price /  per 
  • DG0631 Transverse SLOT Stainless Steel POLYCAST and SS600

    Bronze Age DG0631 SLOT 304 Stainless Steel 5.25" x 48" (Nominal) Grate | Class A

    Bronze Age DG0631 SLOT 304 Stainless Steel 5.25" x 48" (Nominal) Grate | Class A

    Regular price $178.83 USD
    Regular price Sale price $178.83 USD
    Unit price /  per 
  • NDS500S-BA-STAR-B NDS Sand Mini Channel Bronze Age Brushed Bronze Stars Grate

    NDS 3" Sand Mini Channel Kit with TDS Bronze Age Star Grate - Brushed

    NDS 3" Sand Mini Channel Kit with TDS Bronze Age Star Grate - Brushed

    Regular price From $520.97 USD
    Regular price Sale price From $520.97 USD
    Unit price /  per 
  • NDS Slim Channel Kit with Sand Square Grate

    NDS Slim Channel Kit with NDS 9252 Square Deco Grate - SAND

    NDS Slim Channel Kit with NDS 9252 Square Deco Grate - SAND

    Regular price From $84.60 USD
    Regular price Sale price From $84.60 USD
    Unit price /  per 
  • NDS Deco Grey Poly Grate with Sand Channel MCKS-554-GY

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

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

    Regular price From $100.77 USD
    Regular price Sale price From $100.77 USD
    Unit price /  per 
  • ULMA-M100KX

    ULMA M100KX Neutral Shallow Channel

    Sale

    ULMA M100KX Neutral Shallow Channel

    Regular price $141.81 USD
    Regular price $182.33 USD Sale price $141.81 USD
    Unit price /  per 
    Sale
  • POLYCST 600-SS Edge and DG0633 SS SQUARE DECO grate

    POLYCAST®600 Kit w/DG0633 Square Deco Perf Stainless Steel Grate & Edging | Load Class A

    POLYCAST®600 Kit w/DG0633 Square Deco Perf Stainless Steel Grate & Edging | Load Class A

    Regular price From $327.18 USD
    Regular price Sale price From $327.18 USD
    Unit price /  per 
  • NDS500S-BA-STAR NDS Sand Mini Channel Bronze Age Natural Star Grate

    NDS 3" Sand Mini Channel Kit with TDS Bronze Age Star Grate - Natural

    NDS 3" Sand Mini Channel Kit with TDS Bronze Age Star Grate - Natural

    Regular price From $471.47 USD
    Regular price Sale price From $471.47 USD
    Unit price /  per 
  • Polycast 600 with DG0647R Reinforced Slotted grates with Stainless Steel Edges

    POLYCAST 600 Series Kit with DG0647R Reinforced Slotted Stainless Grate and Edging

    POLYCAST 600 Series Kit with DG0647R Reinforced Slotted Stainless Grate and Edging

    Regular price From $567.82 USD
    Regular price Sale price From $567.82 USD
    Unit price /  per 
  • New Image Coming Soon

    ZURN Z884 Drainage Kit w/ P4-FS Slotted Stainless Steel Grates - Bottom Outlet & Stainless Frame

    ZURN Z884 Drainage Kit w/ P4-FS Slotted Stainless Steel Grates - Bottom Outlet & Stainless Frame

    Regular price From $799.40 USD
    Regular price Sale price From $799.40 USD
    Unit price /  per 
  • Z884-P4-PG ZURN Z884 with Galv Perf Class A

    ZURN Z884 Drainage Kit w/ P4-PG Galvanized Perforated Grate - Bottom Outlet

    ZURN Z884 Drainage Kit w/ P4-PG Galvanized Perforated Grate - Bottom Outlet

    Regular price From $397.14 USD
    Regular price Sale price From $397.14 USD
    Unit price /  per 
  • U100KM-GP100KCA 402 galv. steel perforated grate class a polymer concrete galv edge ULMA channel

    ULMA U100K Drainage Kit with ULMA 410 Perforated Grate | Galvanized Class A

    Sale

    ULMA U100K Drainage Kit with ULMA 410 Perforated Grate | Galvanized Class A

    Regular price From $266.30 USD
    Regular price $334.86 USD Sale price From $266.30 USD
    Unit price /  per 
    Sale
  • MCKS-BA-CATH-BF Mini Channel Kit with Sand Channel Bronze Age BoOF Ductile Iron Grate

    NDS® 3" Sand Mini Channel Kit with TDS Bronze Age™ Cathedral Grate -BoOF

    NDS® 3" Sand Mini Channel Kit with TDS Bronze Age™ Cathedral Grate -BoOF

    Regular price From $258.32 USD
    Regular price Sale price From $258.32 USD
    Unit price /  per 
  • NDS Dura Slope Inline Catch Basin with DS-226 Grate

    NDS® Dura Slope In-Line Catch Basin with DS-226 Perforated Stainless Grate - ADA Compliant

    NDS® Dura Slope In-Line Catch Basin with DS-226 Perforated Stainless Grate - ADA Compliant

    Regular price From $778.58 USD
    Regular price Sale price From $778.58 USD
    Unit price /  per 
  • GF-21224

    GF 21224 Heavy-Duty Gray Iron Slotted 12" x 24" x 2" Grate | General Foundry

    GF 21224 Heavy-Duty Gray Iron Slotted 12" x 24" x 2" Grate | General Foundry

    Regular price $211.20 USD
    Regular price Sale price $211.20 USD
    Unit price /  per 
  • 454 IN100KCC Reinforced Stainless Steel Slotted

    ULMA 455 / IN100KCCM Reinforced Stainless Steel Slotted Grate 0.5M Class C

    Sale

    ULMA 455 / IN100KCCM Reinforced Stainless Steel Slotted Grate 0.5M Class C

    Regular price $181.13 USD
    Regular price $232.88 USD Sale price $181.13 USD
    Unit price /  per 
    Sale
  • MCK-BA-DECO-0336 Grey NDS Mini Channel with Stainless Steel Square Deco Grate

    NDS® 3" Gray Mini Channel Kit w/Square Deco 316L Stainless Steel HP Grates

    NDS® 3" Gray Mini Channel Kit w/Square Deco 316L Stainless Steel HP Grates

    Regular price From $306.44 USD
    Regular price Sale price From $306.44 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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