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Drainage Kits
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  • Drainage Kits
    • Popular Manufacturers
      • TDS
      • NDS
      • POLYCAST®
      • ULMA
      • Zurn
      • All Manufacturers
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      • All Drainage Systems
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      • FP1200
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      • Slim Channel
      • SS600
      • ULMA U100K(X)
      • All Drainage Systems
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  • 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-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 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 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 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 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 
  • 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 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-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 
  • 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 
  • POLYCAST 500 Kit w/ Stainless Steel Edging and DG0632 Foam Perforated Grate | Class A

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

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

    Regular price From $495.64 USD
    Regular price Sale price From $495.64 USD
    Unit price /  per 
  • Hydro Mini Plus with 488 Vinylester FRP .6 on center Grate Class C_1 Meter

    ULMA HYDROPLUS Mini with 488 Fiberglass bar grate - Load Class C

    ULMA HYDROPLUS Mini with 488 Fiberglass bar grate - Load Class C

    Regular price From $449.47 USD
    Regular price Sale price From $449.47 USD
    Unit price /  per 
  • POLYCAST 600 with DG0630 Stainless steel Cathedral Grate

    POLYCAST 600 Series Kit w/ DG0630 Cathedral Stainless Steel Grate | Load Class A

    POLYCAST 600 Series Kit w/ DG0630 Cathedral Stainless Steel Grate | Load Class A

    Regular price From $283.07 USD
    Regular price Sale price From $283.07 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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