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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
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      • SS600
      • ULMA U100K(X)
      • All Drainage Systems
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      • FP1200
      • Mini Channel
      • Polycast 600/700
      • Slim Channel
      • SS600
      • ULMA U100K(X)
      • All Drainage Systems
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  • POLY600-xx-675D-TDsdrains cast iron transverse ada grate polymer concrete channel Polycast

    POLYCAST 600 Series Kit with DG0675HD ADA Transverse Slotted Ductile Iron Grate

    POLYCAST 600 Series Kit with DG0675HD ADA Transverse Slotted Ductile Iron Grate

    Regular price From $223.24 USD
    Regular price Sale price From $223.24 USD
    Unit price /  per 
  • ULMA HYDROM-INTER-HP HYDROPLUS Mini Interlaken Heelproof - Raw

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

    HYDROPLUS Mini w/ Iron Age 5"x 20" Heel Proof Interlaken 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-HP Iron Age Regular Joe Heel Proof Grate Class B

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

    ULMA HYDROPLUS Mini w/ Iron Age Regular Joe Raw Heel Proof 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-BAY-0520-HP Raw

    ULMA HYDROPLUS Mini IA-BAY-0520-HP Iron Age Mission Bay HP Raw Cast Iron Grate | Class B

    ULMA HYDROPLUS Mini IA-BAY-0520-HP Iron Age Mission Bay HP 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-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 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 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-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 
  • POLYCAST 600 with DG0644SP Fiberglass FRP Bar Grate

    POLYCAST® 600 Vinyl Ester Series Kit with FG0644SP Slotted Fiberglass Grate

    POLYCAST® 600 Vinyl Ester Series Kit with FG0644SP Slotted Fiberglass Grate

    Regular price From $421.14 USD
    Regular price Sale price From $421.14 USD
    Unit price /  per 
  • POLYCAST 600 W/ DG0675

    POLYCAST® 600 Series Kit w/ DG0675 Plastic HDPE Grate - Load Class A

    POLYCAST® 600 Series Kit w/ DG0675 Plastic HDPE Grate - Load Class A

    Regular price From $213.22 USD
    Regular price Sale price From $213.22 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 
  • POLYCAST 600 with Galvanized DG0620 Cathedral Grate

    POLYCAST® 600 Series Kit w/ DG0620 Cathedral Galvanized Steel Grate | Load Class A

    POLYCAST® 600 Series Kit w/ DG0620 Cathedral Galvanized Steel Grate | Load Class A

    Regular price From $256.02 USD
    Regular price Sale price From $256.02 USD
    Unit price /  per 
  • POLYCAST 600 with Stainless Steel Edge and DG0670

    POLYCAST® 600 Vinyl Ester Series Kit with DG0670 Slotted HDPE Grate & Edge

    POLYCAST® 600 Vinyl Ester Series Kit with DG0670 Slotted HDPE Grate & Edge

    Regular price From $349.77 USD
    Regular price Sale price From $349.77 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 
  • POLY600-SS-657-TDSdrains stainless steel perforated grate stainless edge polymer concrete channel Polycast

    POLYCAST® 600 Vinyl Ester Series Kit with DG0657 Perforated Stainless Grate & Edge

    POLYCAST® 600 Vinyl Ester Series Kit with DG0657 Perforated Stainless Grate & Edge

    Regular price From $454.05 USD
    Regular price Sale price From $454.05 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 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 
  • POLYCAST500 with SS Edging and SS Cathedral Grate

    POLYCAST 500 Kit w/ Stainless Steel Edging and DG0630 Cathedral Grate | Class A

    POLYCAST 500 Kit w/ Stainless Steel Edging and DG0630 Cathedral Grate | Class A

    Regular price From $481.59 USD
    Regular price Sale price From $481.59 USD
    Unit price /  per 
  • PCK5-DG0632 POLYCAST 500 Series Kit with TDS DG0632 Perforated Stainless Steel Grates

    POLYCAST 500 Kit w/ DG0632 Stainless Steel Foam Perforated Grate | Class A

    POLYCAST 500 Kit w/ DG0632 Stainless Steel Foam Perforated Grate | Class A

    Regular price From $411.06 USD
    Regular price Sale price From $411.06 USD
    Unit price /  per 
  • ULMA M100KX Polymer Concrete Stainless Steel edged channel with 497 Mesh grate

    ULMA M100KX Kit with 497 / PE100KCBM Mesh Polypropylene Grate

    ULMA M100KX Kit with 497 / PE100KCBM Mesh Polypropylene Grate

    Regular price From $392.82 USD
    Regular price Sale price From $392.82 USD
    Unit price /  per 
  • POLYCAST 600 with DG0646

    POLYCAST® 600 Series Kit w/ DG0646 Perforated Galvanized Steel Grate

    POLYCAST® 600 Series Kit w/ DG0646 Perforated Galvanized Steel Grate

    Regular price From $208.57 USD
    Regular price Sale price From $208.57 USD
    Unit price /  per 
  • ULMA HYDROPLUS Mini Channel - Bottom View

    ULMA HYDROPLUS Mini with Stainless Steel Slotted Grate (454 / IN100KCC) Class C

    ULMA HYDROPLUS Mini with Stainless Steel Slotted Grate (454 / IN100KCC) Class C

    Regular price From $427.09 USD
    Regular price Sale price From $427.09 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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