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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
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      • Fiberglass
      • Plastic
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      • Pour in Place (Concrete)
      • All Channel Materials
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    • Popular Manufacturers
      • TDS
      • Bronze Age
      • NDS
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      • 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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      • Stainless Steel
      • All Grate Materials
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  • POLYCAST 600 with DG0621 Galv Slot

    POLYCAST®600 Kit w/DG0621 Transverse Slot Galvanized Steel Grate | Load Class A

    POLYCAST®600 Kit w/DG0621 Transverse Slot Galvanized Steel Grate | Load Class A

    Regular price From $241.94 USD
    Regular price Sale price From $241.94 USD
    Unit price /  per 
  • ULMA D100-460

    ULMA D100 Drain Channel w/460 Slotted Ductile Iron Grate - Class C

    ULMA D100 Drain Channel w/460 Slotted Ductile Iron Grate - Class C

    Regular price From $320.70 USD
    Regular price Sale price From $320.70 USD
    Unit price /  per 
  • ULMA Hydro Mini Plus H80 with IA-LOC-0520 Iron Age Locust Grate Class B

    ULMA HYDROPLUS Mini w/ Iron Age 5" Locust Raw Cast Iron Grate | Class B

    ULMA HYDROPLUS Mini w/ Iron Age 5" Locust Raw Cast Iron Grate | Class B

    Regular price From $396.78 USD
    Regular price Sale price From $396.78 USD
    Unit price /  per 
  • ULMA Hydro Mini Plus with IA-GRK-0520-Iron Age Greek Key Grate Class B

    HYDROPLUS Mini w/ Iron Age 5"x20" Greek Key Raw Cast Iron Grate | Class B

    HYDROPLUS Mini w/ Iron Age 5"x20" Greek Key Raw Cast Iron Grate | Class B

    Regular price From $396.78 USD
    Regular price Sale price From $396.78 USD
    Unit price /  per 
  • ULMA HYDROPLUS Mini with IA-MIN-0520 Iron Age Minnione Grate Raw

    ULMA HYDROPLUS Mini w/ Iron Age 5" Minnione Raw Grate | Class B

    ULMA HYDROPLUS Mini w/ Iron Age 5" Minnione Raw Grate | Class B

    Regular price From $396.78 USD
    Regular price Sale price From $396.78 USD
    Unit price /  per 
  • ULMA HYDROPLUS Mini with IA-JANIS-0520 Iron Age Janis Grate Raw

    ULMA HYDROPLUS Mini w/ Iron Age 5" Janis Raw Cast Iron Grate | Class B

    ULMA HYDROPLUS Mini w/ Iron Age 5" Janis Raw Cast Iron Grate | Class B

    Regular price From $396.78 USD
    Regular price Sale price From $396.78 USD
    Unit price /  per 
  • ULMA HYDROPLUS Mini with IA-CARBO-0520 Iron Age Carbochon Grate Raw

    HYDROPLUS Mini w/ Iron Age 5"x20" Carbochon Raw Cast Iron Grate | Class B

    HYDROPLUS Mini w/ Iron Age 5"x20" Carbochon Raw Cast Iron Grate | Class B

    Regular price From $396.78 USD
    Regular price Sale price From $396.78 USD
    Unit price /  per 
  • ULMA Hydro Mini Plus H80 with IA-IA-JOE-0520 Iron Age Regular Joe Grate Class B

    ULMA HYDROPLUS Mini w/ Iron Age Regular Joe Raw Cast Iron Grate | Class B

    ULMA HYDROPLUS Mini w/ Iron Age Regular Joe Raw Cast Iron Grate | Class B

    Regular price From $389.00 USD
    Regular price Sale price From $389.00 USD
    Unit price /  per 
  • ULMA HYDROPLUS Mini with Interlaken Raw IA-INTER-0520 Class B

    HYDROPLUS Mini w/ Iron Age 5"x 20" Interlaken Raw Cast Iron Grate | Class B

    HYDROPLUS Mini w/ Iron Age 5"x 20" Interlaken Raw Cast Iron Grate | Class B

    Regular price From $389.00 USD
    Regular price Sale price From $389.00 USD
    Unit price /  per 
  • U100KM-FNHX100KCCM-1 cast iron heel-proof grate polymer concrete galv edge ULMA channel

    ULMA U100K Drainage Kit with 480 Ductile Iron Heel-Proof Grate

    ULMA U100K Drainage Kit with 480 Ductile Iron Heel-Proof Grate

    Regular price From $417.06 USD
    Regular price Sale price From $417.06 USD
    Unit price /  per 
  • M100KX Ulma Stainless Steel edge channel Iron Age River Rock Raw Grate

    M100KX Kit w/Iron Age River Rock Grate | RAW

    M100KX Kit w/Iron Age River Rock Grate | RAW

    Regular price From $2,314.25 USD
    Regular price Sale price From $2,314.25 USD
    Unit price /  per 
  • Iron Age Interlaken BoOF Grate on Sand Mini Channel MCKS-IA-Inter-BF

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

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

    Regular price From $389.51 USD
    Regular price Sale price From $389.51 USD
    Unit price /  per 
  • NDS-Dura-Slope-221 galvanized steel grate dura slope channel

    NDS Dura Slope Kit with DS-221 Galvanized Slotted Grate

    NDS Dura Slope Kit with DS-221 Galvanized Slotted Grate

    Regular price From $450.06 USD
    Regular price Sale price From $450.06 USD
    Unit price /  per 
  • MV+200KX-661

    ULMA MV+200KX w/ 661 Ductile Iron 9X20 Slotted Grate Class E

    ULMA MV+200KX w/ 661 Ductile Iron 9X20 Slotted Grate Class E

    Regular price From $339.11 USD
    Regular price Sale price From $339.11 USD
    Unit price /  per 
  • POLY700-PE-646R

    POLYCAST®700 Kit w/DG0646R Reinforced Perforated Galvanized Grate-HDPE Frame

    POLYCAST®700 Kit w/DG0646R Reinforced Perforated Galvanized Grate-HDPE Frame

    Regular price From $395.50 USD
    Regular price Sale price From $395.50 USD
    Unit price /  per 
  • NDS-Dura-XX-670 with Light Gray Plastic Perforated Grate

    NDS Dura Slope Kit with DS-670 Plastic Perforated Grate | Light Gray

    NDS Dura Slope Kit with DS-670 Plastic Perforated Grate | Light Gray

    Regular price From $419.00 USD
    Regular price Sale price From $419.00 USD
    Unit price /  per 
  • 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® Dura Slope Kit with DS-664 HDPE Slotted Grate | Sand

    NDS® Dura Slope Kit with DS-664 HDPE Slotted Grate | Sand

    NDS® Dura Slope Kit with DS-664 HDPE Slotted Grate | Sand

    Regular price From $419.00 USD
    Regular price Sale price From $419.00 USD
    Unit price /  per 
  • NDS-Dura-XX-663-TDSdrains

    NDS® Dura Slope Kit with DS-663 HDPE Slotted Grate | Black Class B

    NDS® Dura Slope Kit with DS-663 HDPE Slotted Grate | Black Class B

    Regular price From $419.00 USD
    Regular price Sale price From $419.00 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 
  • 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-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 
  • ULMA M100KX stainless steel edged polymer concrete channel with 450 stainless steel slotted grate

    ULMA M100KX Kit with 450 / IN100KCA Stainless Steel Slotted Grate

    ULMA M100KX Kit with 450 / IN100KCA Stainless Steel Slotted Grate

    Regular price From $427.68 USD
    Regular price Sale price From $427.68 USD
    Unit price /  per 
  • NDS-Dura-XX-232 NDS Duraslope with a Ductile Iron Slotted grate

    NDS Dura Slope Kit with DS-232 Ductile Iron Grate - 6"

    NDS Dura Slope Kit with DS-232 Ductile Iron Grate - 6"

    Regular price From $475.22 USD
    Regular price Sale price From $475.22 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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