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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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    • Popular Manufacturers
      • TDS
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      • Zurn
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    • 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
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  • PCK5-DG0647 POLYCAST 500 Series with DG0647 Stainless Steel Grates

    POLYCAST 500 Series Kit with DG0647 Slotted Stainless Grate

    POLYCAST 500 Series Kit with DG0647 Slotted Stainless Grate

    Regular price From $359.91 USD
    Regular price Sale price From $359.91 USD
    Unit price /  per 
  • POLYCAST 400 w/DG0442

    POLYCAST®400 Series Kit w/DG0442 5"x48" Slotted Galvanized Grate

    POLYCAST®400 Series Kit w/DG0442 5"x48" Slotted Galvanized Grate

    Regular price From $265.11 USD
    Regular price Sale price From $265.11 USD
    Unit price /  per 
  • POLY500-xx-641-TDSdrains ductile iron slotted grate shallow POLYCAST polymer concrete channel

    POLYCAST 500 Series Kit with DG0641D Slotted Ductile Iron Grate

    POLYCAST 500 Series Kit with DG0641D Slotted Ductile Iron Grate

    Regular price From $319.31 USD
    Regular price Sale price From $319.31 USD
    Unit price /  per 
  • FGK-T1215-EZ-09 FRP EZ Frame and Grate Kit

    9" Fiberglass Kit w/ T-Bar T1215 Grate and EZ Frame - Load Class A

    9" Fiberglass Kit w/ T-Bar T1215 Grate and EZ Frame - Load Class A

    Regular price From $392.90 USD
    Regular price Sale price From $392.90 USD
    Unit price /  per 
  • 8" Fiberglass Kit w/ Mesh Grate and EZ Frame - Load Class A

    8" Fiberglass Kit w/ Mesh Grate and EZ Frame - Load Class A

    8" Fiberglass Kit w/ Mesh Grate and EZ Frame - Load Class A

    Regular price From $355.16 USD
    Regular price Sale price From $355.16 USD
    Unit price /  per 
  • DP0600 POLYCAST 600 channel

    POLYCAST 600 Series Sloped Channel

    POLYCAST 600 Series Sloped Channel

    Regular price From $192.44 USD
    Regular price Sale price From $192.44 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 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 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 Series Kit w/ DG0675G Gray Transverse Plastic Grate - Load Class A

    POLYCAST 600 Series Kit w/ DG0675G Gray Transverse Plastic Grate - Load Class A

    POLYCAST 600 Series Kit w/ DG0675G Gray Transverse Plastic Grate - Load Class A

    Regular price From $217.81 USD
    Regular price Sale price From $217.81 USD
    Unit price /  per 
  • 8" Fiberglass Kit w/ Mesh Grate and WYE Frame - Load Class A

    8" Fiberglass Kit w/ Mesh Grate and WYE Frame - Load Class A

    8" Fiberglass Kit w/ Mesh Grate and WYE Frame - Load Class A

    Regular price From $389.36 USD
    Regular price Sale price From $389.36 USD
    Unit price /  per 
  • FG-T1215-WYE-12 Fiberglass T-Bar grate with WYE Frame

    12" Fiberglass Kit w/ T-Bar Grate and WYE Frame - Load Class A

    12" Fiberglass Kit w/ T-Bar Grate and WYE Frame - Load Class A

    Regular price From $460.06 USD
    Regular price Sale price From $460.06 USD
    Unit price /  per 
  • FG-T1215-EZ-12 Fiberglass T-Bar grate with EZ Frame

    12" Fiberglass Kit w/ T-Bar Grate and EZ Frame - Load Class A

    12" Fiberglass Kit w/ T-Bar Grate and EZ Frame - Load Class A

    Regular price From $434.86 USD
    Regular price Sale price From $434.86 USD
    Unit price /  per 
  • 10" Fiberglass Kit w/ Mesh Grate and EZ Frame - Load Class A

    10" Fiberglass Kit w/ Mesh Grate and EZ Frame - Load Class A

    10" Fiberglass Kit w/ Mesh Grate and EZ Frame - Load Class A

    Regular price From $397.27 USD
    Regular price Sale price From $397.27 USD
    Unit price /  per 
  • ULMA Hydro Mini Plus H80 with IA-IA-JOE-0520-BF Iron Age Regular Joe Grate BoOF Class B

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

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

    Regular price From $500.54 USD
    Regular price Sale price From $500.54 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 
  • 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 
  • POLY600-XX-675

    POLYCAST® 600 Vinyl Ester Series Kit w/ DG0675 Transverse Slotted HDPE Grate

    POLYCAST® 600 Vinyl Ester Series Kit w/ DG0675 Transverse Slotted HDPE Grate

    Regular price From $315.12 USD
    Regular price Sale price From $315.12 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 
  • POLY600-xx-647-DK stainless steel slotted grate polymer concrete channel

    POLYCAST® 600 Vinyl Ester Series Kit with DG0647 Slotted Stainless Grate

    POLYCAST® 600 Vinyl Ester Series Kit with DG0647 Slotted Stainless Grate

    Regular price From $402.39 USD
    Regular price Sale price From $402.39 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 
  • HYDROM-ANISE-0520-HP ULMA HYDROPLUS Anise 0520-Raw

    ULMA HYDROPLUS Mini w/ Iron Age IA-ANISE-0520-HP Anise Heel Proof Cast Iron Grate | Class B

    ULMA HYDROPLUS Mini w/ Iron Age IA-ANISE-0520-HP Anise Heel Proof 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 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 kit with Gray DG0670G grate

    POLYCAST 600 Series Kit w/ DG0670G Gray Plastic Grate - Load Class A

    POLYCAST 600 Series Kit w/ DG0670G Gray Plastic Grate - Load Class A

    Regular price From $207.90 USD
    Regular price Sale price From $207.90 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
Shop All

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