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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
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      • 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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  • M100K-FNHX100KCCM-1 Wave heel-proof cast iron grate polymer concrete galv edge ULMA channel

    ULMA M100K W/Ductile Iron Heel-proof Wave Grate (1/2 M) Class C

    ULMA M100K W/Ductile Iron Heel-proof Wave Grate (1/2 M) Class C

    Regular price From $314.19 USD
    Regular price Sale price From $314.19 USD
    Unit price /  per 
  • ULMA U100KX with Black 480 Heel Proof Grate

    ULMA U100KX w/ Ductile Iron Heel-Proof Grate (480)

    ULMA U100KX w/ Ductile Iron Heel-Proof Grate (480)

    Regular price From $201.56 USD
    Regular price Sale price From $201.56 USD
    Unit price /  per 
  • ULMA U100K with Galvanized Edge and Polypropylene Mesh Grate

    ULMA U100K Kit w/ ULMA 497 / PE100KCBM Polypropylene Mesh Grate

    ULMA U100K Kit w/ ULMA 497 / PE100KCBM Polypropylene Mesh Grate

    Regular price From $397.00 USD
    Regular price Sale price From $397.00 USD
    Unit price /  per 
  • FGK-HLC-WYE-12 Fiberglass Mesh Grate with WYE Frame

    12" Fiberglass Kit w/ HLC Grate (Nominal Width) and WYE Frame - Load Class C

    12" Fiberglass Kit w/ HLC Grate (Nominal Width) and WYE Frame - Load Class C

    Regular price From $759.24 USD
    Regular price Sale price From $759.24 USD
    Unit price /  per 
  • POLYCAST 600 with DG0670

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

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

    Regular price From $307.48 USD
    Regular price Sale price From $307.48 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 
  • 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 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 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 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 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-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 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 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 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 
  • PCK6-DG0640-GE POLYCAST with Galvanized Steel Slotted Grate and Edging

    POLYCAST 600 Series Kit w/ DG0640 Slotted Galvanized Grate and Edging | Load Class B

    POLYCAST 600 Series Kit w/ DG0640 Slotted Galvanized Grate and Edging | Load Class B

    Regular price From $237.34 USD
    Regular price Sale price From $237.34 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 
  • POLY600-xx-657-TDSdrains stainless steel perforated grate polymer concrete channel Polycast

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

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

    Regular price From $411.76 USD
    Regular price Sale price From $411.76 USD
    Unit price /  per 
  • POLY600-SS-647-DK stainless steel edge stainless steel slotted grate polymer concrete channel Polycast

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

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

    Regular price From $444.68 USD
    Regular price Sale price From $444.68 USD
    Unit price /  per 
  • POLY500-XX-630 POLYCAST 500 Cathedral Stainless Steel

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

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

    Regular price From $397.01 USD
    Regular price Sale price From $397.01 USD
    Unit price /  per 
  • ULMA drain channel with stainless steel edge and polypropylene grate

    ULMA U100K Kit with 494 / PNH100KCAM Polypropylene ADA Heel Proof Grate – BLACK

    ULMA U100K Kit with 494 / PNH100KCAM Polypropylene ADA Heel Proof Grate – BLACK

    Regular price From $373.44 USD
    Regular price Sale price From $373.44 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 
  • 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 
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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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