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      • TDS
      • NDS
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      • All Manufacturers
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      • Dura Slope
      • Mini Channel
      • Polycast 600/700
      • Slim Channel
      • SS600
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      • All Drainage Systems
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      • All Load Classes
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    • Popular Manufacturers
      • TDS
      • Bronze Age
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      • Polylok
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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
      • Fiberglass
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  • ULMA drain channel with stainless steel edge and polypropylene grate

    ULMA U100K Kit with 495 / PNH100KCAM-GRIS Polypropylene ADA Heel Proof Grate – GRAY

    Sale

    ULMA U100K Kit with 495 / PNH100KCAM-GRIS Polypropylene ADA Heel Proof Grate – GRAY

    Regular price From $304.36 USD
    Regular price $381.33 USD Sale price From $304.36 USD
    Unit price /  per 
    Sale
  • ULMA HYDRO PLUS with ULMA 494 ADA Heel proof Polypropylene Black Grate-Class A

    ULMA HYDROPLUS with 494 / PNH100KCAM Polypropylene ADA Heel Proof Grate Class A - BLACK

    Sale

    ULMA HYDROPLUS with 494 / PNH100KCAM Polypropylene ADA Heel Proof Grate Class A - BLACK

    Regular price From $135.09 USD
    Regular price $171.06 USD Sale price From $135.09 USD
    Unit price /  per 
    Sale
  • ULMA drain channel with stainless steel edge and polypropylene grate

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

    Sale

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

    Regular price From $298.23 USD
    Regular price $373.44 USD Sale price From $298.23 USD
    Unit price /  per 
    Sale
  • 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

    Sale

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

    Regular price From $402.60 USD
    Regular price $411.08 USD Sale price From $402.60 USD
    Unit price /  per 
    Sale
  • M100KX Polymer concrete linear channel with stainless steel edge with 495 grey poly grates

    ULMA M100KX Kit with 495 / PNH100KCAM-GRIS ADA Heel-Proof Poly Grate -GRAY

    Sale

    ULMA M100KX Kit with 495 / PNH100KCAM-GRIS ADA Heel-Proof Poly Grate -GRAY

    Regular price From $301.11 USD
    Regular price $377.15 USD Sale price From $301.11 USD
    Unit price /  per 
    Sale
  • ULMA M100KX Stainless Steel edged polymer concrete channel with heel-proof ductile iron class E grate

    ULMA M100KX w/480 Ductile Iron Heel-Proof Grate - Class C

    Sale

    ULMA M100KX w/480 Ductile Iron Heel-Proof Grate - Class C

    Regular price From $327.92 USD
    Regular price $411.62 USD Sale price From $327.92 USD
    Unit price /  per 
    Sale
  • FG-T1215-1248 Fiberglass 12 inch T-Bar Grate

    12" Fiberglass Heel Proof T-Bar Grate - Load Class A

    12" Fiberglass Heel Proof T-Bar Grate - Load Class A

    Regular price $366.50 USD
    Regular price Sale price $366.50 USD
    Unit price /  per 
  • ZURN-P12-HPDE 12in Heel proof Longitudinal  Class E H-20

    Zurn P12 Class E H-20 Longitudinal Slotted Heel-Proof Ductile Iron 12" x 24" Grate

    Zurn P12 Class E H-20 Longitudinal Slotted Heel-Proof Ductile Iron 12" x 24" Grate

    Regular price $644.00 USD
    Regular price Sale price $644.00 USD
    Unit price /  per 
  • ULMA U100KX with Black 480 Heel Proof Grate

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

    Sale

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

    Regular price From $156.77 USD
    Regular price $201.56 USD Sale price From $156.77 USD
    Unit price /  per 
    Sale
  • ULMA M100KX polymer concrete linear channel with stainless edge and 494 black poly grate

    ULMA M100KX Kit with 494 ADA/Heel-Proof Poly Grate Class A - BLACK

    Sale

    ULMA M100KX Kit with 494 ADA/Heel-Proof Poly Grate Class A - BLACK

    Regular price From $294.98 USD
    Regular price $369.26 USD Sale price From $294.98 USD
    Unit price /  per 
    Sale
  • P6-PS ZURN Z886 Stainless Steel Perforated Heelproof ADA Grate_Class A

    ZURN P6-PS ADA Perforated Stainless Steel Grate Heel Proof 6" x 40" (Nominal) | Class A

    ZURN P6-PS ADA Perforated Stainless Steel Grate Heel Proof 6" x 40" (Nominal) | Class A

    Regular price $382.00 USD
    Regular price Sale price $382.00 USD
    Unit price /  per 
  • M100K w/Bronze Age™ Cathedral Ductile Iron Heel-Proof Grate - RAW

    M100K w/Bronze Age™ Cathedral Ductile Iron Heel-Proof Grate - RAW

    Sale

    M100K w/Bronze Age™ Cathedral Ductile Iron Heel-Proof Grate - RAW

    Regular price From $351.07 USD
    Regular price $391.38 USD Sale price From $351.07 USD
    Unit price /  per 
    Sale
  • 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

    Sale

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

    Regular price From $402.60 USD
    Regular price $411.08 USD Sale price From $402.60 USD
    Unit price /  per 
    Sale
  • ULMA M100V w/Bronze Age™ FERN Ductile Iron Heel-Proof Grate - RAW

    ULMA M100V w/Bronze Age™ FERN Ductile Iron Heel-Proof Grate - RAW

    Sale

    ULMA M100V w/Bronze Age™ FERN Ductile Iron Heel-Proof Grate - RAW

    Regular price From $310.06 USD
    Regular price $338.65 USD Sale price From $310.06 USD
    Unit price /  per 
    Sale
  • ULMA HYDROM-INTER-HP-BF HYDROPLUS Mini Interlaken Heelproof - BoOF

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

    Sale

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

    Regular price From $519.86 USD
    Regular price $528.34 USD Sale price From $519.86 USD
    Unit price /  per 
    Sale
  • HYDRO PLUS with IA-BAY-0520-HP raw cast iron grate

    ULMA HYDROPLUS w/ Iron Age IA-BAY-0520-HP Mission Bay Heel Proof Raw Cast Iron Grate Class B

    Sale

    ULMA HYDROPLUS w/ Iron Age IA-BAY-0520-HP Mission Bay Heel Proof Raw Cast Iron Grate Class B

    Regular price From $441.85 USD
    Regular price $465.78 USD Sale price From $441.85 USD
    Unit price /  per 
    Sale
  • ULMA drain channel with stainless steel edge and polypropylene grate

    ULMA U100KX Kit with 494 / PNH100KCAM Polypropylene ADA Heel Proof Grate – BLACK

    Sale

    ULMA U100KX Kit with 494 / PNH100KCAM Polypropylene ADA Heel Proof Grate – BLACK

    Regular price From $139.81 USD
    Regular price $179.75 USD Sale price From $139.81 USD
    Unit price /  per 
    Sale
  • ULMA Hydro Mini Plus H80 with IA-ARGO-0520-HP Iron Age Argo Heel proof Grate Class B

    ULMA HYDROPLUS Mini w/ Iron Age IA-ARGO-0520-HP Argo Heel Proof Raw Cast Iron Grate Class B

    Sale

    ULMA HYDROPLUS Mini w/ Iron Age IA-ARGO-0520-HP Argo Heel Proof Raw Cast Iron Grate Class B

    Regular price From $402.60 USD
    Regular price $411.08 USD Sale price From $402.60 USD
    Unit price /  per 
    Sale
  • ULMA HYDRO PLUS with IA-ARGO-0520-HP Iron Age Argo Heelproof Grate-Class B

    ULMA HYDROPLUS w/ Iron Age IA-ARGO-0520-HP Argo Heel Proof Raw Cast Iron Grate Class B

    Sale

    ULMA HYDROPLUS w/ Iron Age IA-ARGO-0520-HP Argo Heel Proof Raw Cast Iron Grate Class B

    Regular price From $441.85 USD
    Regular price $465.78 USD Sale price From $441.85 USD
    Unit price /  per 
    Sale
  • New Image Coming Soon

    ULMA M100V w/Bronze Age™ WAVE Ductile Iron Heel-Proof Grate - RAW

    Sale

    ULMA M100V w/Bronze Age™ WAVE Ductile Iron Heel-Proof Grate - RAW

    Regular price From $310.06 USD
    Regular price $338.65 USD Sale price From $310.06 USD
    Unit price /  per 
    Sale
  • ULMA Hydro Mini Plus H80 with IA-IA-JOE-0520-HP-BF Iron Age Regular Joe Heel Proof BoOF Grate Class B

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

    Sale

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

    Regular price From $519.86 USD
    Regular price $528.34 USD Sale price From $519.86 USD
    Unit price /  per 
    Sale
  • ULMA HYDRO PLUS with IA-ARGO-0520-HP-BF Iron Age Argo Heelproof BoOF Grate-Class B

    ULMA HYDROPLUS w/ Iron Age IA-ARGO-0520-HP-BF Argo Heel Proof BoOF Cast Iron Grate Class B

    Sale

    ULMA HYDROPLUS w/ Iron Age IA-ARGO-0520-HP-BF Argo Heel Proof BoOF Cast Iron Grate Class B

    Regular price From $559.11 USD
    Regular price $583.04 USD Sale price From $559.11 USD
    Unit price /  per 
    Sale
  • ULMA HYDROPLUS with Iron Age Que BoOF Finish Cast Iron Grate

    ULMA HYDROPLUS with Iron Age IA-QUE-0520-HP BoOF Que Heel Proof Cast Iron Grate Class B

    Sale

    ULMA HYDROPLUS with Iron Age IA-QUE-0520-HP BoOF Que Heel Proof Cast Iron Grate Class B

    Regular price From $559.11 USD
    Regular price $583.04 USD Sale price From $559.11 USD
    Unit price /  per 
    Sale
  • Z884: A General Purpose Shallow Drainage System

    Z884: A General Purpose Shallow Drainage System

    November 5, 2020
    Blog

    Z884: A General Purpose Shallow Drainage System

    November 5, 2020
    Blog
  • Ductile Iron Grates For POLYCAST® 600/700 Systems

    Ductile Iron Grates For POLYCAST® 600/700 Systems

    June 23, 2021
    Blog

    Ductile Iron Grates For POLYCAST® 600/700 Systems

    June 23, 2021
    Blog
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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 420 / GN100KCA, Class A, Slotted Galvanized Steel 122mm x 1M Grate

    ULMA 420 / GN100KCA, Class A, Slotted Galvanized Steel 122mm x 1M Grate

    $37.45
  • ULMA 424 / GN100KCC, Class C, Slotted Reinforced Galvanized Steel 124mm x 1M Grate

    ULMA 424 / GN100KCC, Class C, Slotted Reinforced Galvanized Steel 124mm x 1M Grate

    $89.29
  • LD100X-2 Locking Device for ULMA Grates

    LD100X-2 Locking Device for ULMA Grates

    $14.40
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