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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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      • Plastic
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      • Pour in Place (Concrete)
      • All Channel Materials
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      • All Load Classes
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    • Popular Manufacturers
      • TDS
      • Bronze Age
      • NDS
      • Polycast
      • Polylok
      • ULMA
      • Zurn
      • All Manufacturers
    • 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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      • Ductile/Cast Iron
      • Fiberglass
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  • ULMA M100KX Drain Channel kit w/Bronze Age™ BARS Grate-RAW

    ULMA M100KX Drain Channel kit w/Bronze Age™ BARS Grate-RAW

    Sale

    ULMA M100KX Drain Channel kit w/Bronze Age™ BARS Grate-RAW

    Regular price From $426.85 USD
    Regular price $488.80 USD Sale price From $426.85 USD
    Unit price /  per 
    Sale
  • ULMA M100K w/Bronze Age™ Luna Ductile Iron Heel-Proof Grate - RAW

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

    Sale

    ULMA M100K w/Bronze Age™ Luna 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
  • D100-BA-PED-0520

    ULMA D100 w/Bronze Age™ PEDREDA Ductile Iron Grate - RAW

    Sale

    ULMA D100 w/Bronze Age™ PEDREDA Ductile Iron Grate - RAW

    Regular price From $414.64 USD
    Regular price $421.92 USD Sale price From $414.64 USD
    Unit price /  per 
    Sale
  • New Image Coming Soon

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

    Sale

    ULMA M100V w/Bronze Age™ PEDREDA 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
  • TDS-529B-brass-FH-screws-64

    NDS-529B Brass Screws for Mini Channel Bronze Grates (64 PCS)

    NDS-529B Brass Screws for Mini Channel Bronze Grates (64 PCS)

    Regular price $61.64 USD
    Regular price Sale price $61.64 USD
    Unit price /  per 
  • 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 HYDRO PLUS with ULMA 424 Galvanized Reinforced Steel Slotted-Grate Class C

    ULMA HYDROPLUS with 424 / GN100KCC Reinforced Galvanized Slotted Grate Class C

    Sale

    ULMA HYDROPLUS with 424 / GN100KCC Reinforced Galvanized Slotted Grate Class C

    Regular price From $148.29 USD
    Regular price $188.04 USD Sale price From $148.29 USD
    Unit price /  per 
    Sale
  • M100KX polymer concrete channel with stainless steel edge and Iron Age Baked on Oil Finish Argo grate

    ULMA M100KX Kit w/Iron Age Argo Grate | BoOF

    Sale

    ULMA M100KX Kit w/Iron Age Argo Grate | BoOF

    Regular price From $718.03 USD
    Regular price $779.98 USD Sale price From $718.03 USD
    Unit price /  per 
    Sale
  • ULMA M100KX Channel with Stainless Steel Edge and BoOF Mission Bay Grate

    ULMA M100KX Kit w/Iron Age Heel Proof Mission Bay Grate | BoOF

    Sale

    ULMA M100KX Kit w/Iron Age Heel Proof Mission Bay Grate | BoOF

    Regular price From $3,269.23 USD
    Regular price $3,527.33 USD Sale price From $3,269.23 USD
    Unit price /  per 
    Sale
  • ULMA D100 w/Bronze Age™ CATHEDRAL Ductile Iron Grate - RAW

    ULMA D100 w/Bronze Age™ CATHEDRAL Ductile Iron Grate - RAW

    Sale

    ULMA D100 w/Bronze Age™ CATHEDRAL Ductile Iron Grate - RAW

    Regular price From $414.64 USD
    Regular price $421.92 USD Sale price From $414.64 USD
    Unit price /  per 
    Sale
  • New Image Coming Soon

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

    Sale

    ULMA M100K w/Bronze Age™ Wave 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 shallow drain channel with stainless steel edge and Iron Age Interlaken grate with Baked on Oil Finish

    M100KX w/ Interlaken Iron Age Grate & Stainless Edge -BoOF

    Sale

    M100KX w/ Interlaken Iron Age Grate & Stainless Edge -BoOF

    Regular price From $711.98 USD
    Regular price $772.21 USD Sale price From $711.98 USD
    Unit price /  per 
    Sale
  • M100KX polymer concrete channel with stainless steel edge with Iron Age Baked on Oil Finish Cast Iron Janis grate

    ULMA M100KX Kit with Iron Age JA5-20I21 Janis Grate – BoOF

    Sale

    ULMA M100KX Kit with Iron Age JA5-20I21 Janis Grate – BoOF

    Regular price From $718.03 USD
    Regular price $779.98 USD Sale price From $718.03 USD
    Unit price /  per 
    Sale
  • ULMA M100KX polymer concrete channel with stainless steel edge and Iron Age Baked on Oil Finish Cast Iron Oblio grate

    ULMA M100KX Kit with Iron Age Oblio Cast Iron Grate - BoOF

    Sale

    ULMA M100KX Kit with Iron Age Oblio Cast Iron Grate - BoOF

    Regular price From $718.03 USD
    Regular price $779.98 USD Sale price From $718.03 USD
    Unit price /  per 
    Sale
  • M100KX polymer concrete channel with stainless steel edge with Iron Age Raw Cast Iron Janis grate

    ULMA M100KX Kit with Iron Age JA5-20I21 Janis Grate - RAW

    Sale

    ULMA M100KX Kit with Iron Age JA5-20I21 Janis Grate - RAW

    Regular price From $600.77 USD
    Regular price $662.72 USD Sale price From $600.77 USD
    Unit price /  per 
    Sale
  • U100KM-Locust-boof cast iron deco ironage grate polymer concrete ULMA channel galv edge

    ULMA U100KX Drain Channel w/ Iron Age Locust Grate-BoOF

    Sale

    ULMA U100KX Drain Channel w/ Iron Age Locust Grate-BoOF

    Regular price From $351.82 USD
    Regular price $385.74 USD Sale price From $351.82 USD
    Unit price /  per 
    Sale
  • Ulma U100KX Channel with Iron Age Heel proof Mission Bay grating in Baked on Oil finish

    ULMA U100KX Drain Channel w/ Iron Age Mission Bay Grate-BoOF

    Sale

    ULMA U100KX Drain Channel w/ Iron Age Mission Bay Grate-BoOF

    Regular price From $351.82 USD
    Regular price $385.74 USD Sale price From $351.82 USD
    Unit price /  per 
    Sale
  • ULMA M100K Drain Channel kit w/Bronze Age™ PEDREDA Grate-RAW

    ULMA M100K Drain Channel kit w/Bronze Age™ PEDREDA Grate-RAW

    Sale

    ULMA M100K Drain Channel kit w/Bronze Age™ PEDREDA Grate-RAW

    Regular price From $351.07 USD
    Regular price $391.38 USD Sale price From $351.07 USD
    Unit price /  per 
    Sale
  • ULMA drain channel with stainless steel edge and Iron Age Argo Baked on Oil Finish grate

    ULMA U100KX Drain Channel w/ Iron Age Argo Grate - BoOF

    Sale

    ULMA U100KX Drain Channel w/ Iron Age Argo Grate - BoOF

    Regular price From $351.82 USD
    Regular price $385.74 USD Sale price From $351.82 USD
    Unit price /  per 
    Sale
  • ULMA D100 w/Bronze Age™ LUNA Ductile Iron Grate - RAW

    ULMA D100 w/Bronze Age™ LUNA Ductile Iron Grate - RAW

    Sale

    ULMA D100 w/Bronze Age™ LUNA Ductile Iron Grate - RAW

    Regular price From $414.64 USD
    Regular price $421.92 USD Sale price From $414.64 USD
    Unit price /  per 
    Sale
  • U1kX-IA-QUE-HP-BF

    ULMA U100KX Drain Channel w/ Iron Age Que Grate - BoOF

    Sale

    ULMA U100KX Drain Channel w/ Iron Age Que Grate - BoOF

    Regular price From $351.82 USD
    Regular price $385.74 USD Sale price From $351.82 USD
    Unit price /  per 
    Sale
  • ULMA D100 with steel slotted 420 grates

    ULMA D100 Drain Channel w/420 Slotted Galvanized Grate - Class A

    Sale

    ULMA D100 Drain Channel w/420 Slotted Galvanized Grate - Class A

    Regular price From $258.72 USD
    Regular price $275.19 USD Sale price From $258.72 USD
    Unit price /  per 
    Sale
  • ULMA D100-460

    ULMA D100 Drain Channel w/460 Slotted Ductile Iron Grate - Class C

    Sale

    ULMA D100 Drain Channel w/460 Slotted Ductile Iron Grate - Class C

    Regular price From $297.03 USD
    Regular price $320.70 USD Sale price From $297.03 USD
    Unit price /  per 
    Sale
  • New Image Coming Soon

    ULMA M100KX Drain Channel kit w/Bronze Age™ FERN Grate-RAW

    Sale

    ULMA M100KX Drain Channel kit w/Bronze Age™ FERN Grate-RAW

    Regular price From $426.85 USD
    Regular price $488.80 USD Sale price From $426.85 USD
    Unit price /  per 
    Sale
  • HYDROPLUS with Iron Age Rain BOOF Grate

    ULMA HYDROPLUS with Iron Age RNN3-12I01HP / IA-RAIN-0520 Rain BoOF Cast Iron Grate Class B

    Sale

    ULMA HYDROPLUS with Iron Age RNN3-12I01HP / IA-RAIN-0520 Rain BoOF Cast Iron Grate Class B

    Regular price From $551.97 USD
    Regular price $573.86 USD Sale price From $551.97 USD
    Unit price /  per 
    Sale
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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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shop@trenchdrain.com

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