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      • TDS
      • NDS
      • POLYCAST®
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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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      • FP1200
      • Mini Channel
      • Polycast 600/700
      • Slim Channel
      • SS600
      • ULMA U100K(X)
      • All Drainage Systems
    • Grate Material
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  • ULMA HYDROPLUS with Interlaken Heel Proof Raw Grate

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

    Sale

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

    Regular price From $441.85 USD
    Regular price $465.78 USD Sale price From $441.85 USD
    Unit price /  per 
    Sale
  • M100K-Carbochon Iron Age raw cast iron deco grate polymer concrete galv edge ULMA channel

    ULMA M100K W/Iron Age Carbochon Grate

    Sale

    ULMA M100K W/Iron Age Carbochon Grate

    Regular price From $524.99 USD
    Regular price $565.30 USD Sale price From $524.99 USD
    Unit price /  per 
    Sale
  • ULMA HYDROPLUS w/ PED Ductile Iron Grate - Class C

    ULMA HYDROPLUS w/ PED Ductile Iron Grate - Class C

    Sale

    ULMA HYDROPLUS w/ PED Ductile Iron Grate - Class C

    Regular price From $267.93 USD
    Regular price $291.86 USD Sale price From $267.93 USD
    Unit price /  per 
    Sale
  • New Image Coming Soon

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

    Sale

    ULMA M100V w/Bronze Age™ CATHEDRAL 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
  • Hydro Plus with 406 Heelproof Galvanized Mesh Grate

    ULMA HYDROPLUS with 406 / GEHX100KCB Galvanized Heel-Proof Mesh Grate Class B

    Sale

    ULMA HYDROPLUS with 406 / GEHX100KCB Galvanized Heel-Proof Mesh Grate Class B

    Regular price From $1,296.93 USD
    Regular price $1,622.03 USD Sale price From $1,296.93 USD
    Unit price /  per 
    Sale
  • ULMA with stainless steel edge and Carbochon Baked on Oil Finish grate

    ULMA U100KX Drain Channel w/ Iron Age Carbochon Grate-RAW

    Sale

    ULMA U100KX Drain Channel w/ Iron Age Carbochon Grate-RAW

    Regular price From $293.19 USD
    Regular price $327.11 USD Sale price From $293.19 USD
    Unit price /  per 
    Sale
  • ULMA D100-461

    ULMA D100 Drain Channel w/461D Slotted Ductile Iron Grate - Class E

    Sale

    ULMA D100 Drain Channel w/461D Slotted Ductile Iron Grate - Class E

    Regular price From $318.27 USD
    Regular price $348.01 USD Sale price From $318.27 USD
    Unit price /  per 
    Sale
  • M100K-RegularJoe Cast Iron Deco raw Iron Age grate polymer concrete galv edge ULMA channel

    ULMA M100K/Iron Age Regular Joe

    Sale

    ULMA M100K/Iron Age Regular Joe

    Regular price From $518.94 USD
    Regular price $557.52 USD Sale price From $518.94 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 shallow drain channel with stainless steel edge and Iron Age Greek Key grate with Baked on Oil Finish

    ULMA M100KX Kit with Iron Age GA5-20I21 Greek Key Grate – BoOF

    Sale

    ULMA M100KX Kit with Iron Age GA5-20I21 Greek Key Grate – BoOF

    Regular price From $718.03 USD
    Regular price $779.98 USD Sale price From $718.03 USD
    Unit price /  per 
    Sale
  • IA-Interlaken-grate-Spee-D-channel-BooF Iron Age

    Iron Age IA-INTER-0418-BF Class B Interlaken Cast Iron 4" x 18" Grate - BoOF

    Iron Age IA-INTER-0418-BF Class B Interlaken Cast Iron 4" x 18" Grate - BoOF

    Regular price $205.92 USD
    Regular price Sale price $205.92 USD
    Unit price /  per 
  • Z886-DGC Zurn Z886 with DGC grate

    Zurn Z886 Drainage Kit w/ DGC Ductile Iron Slotted Grate & Bottom Outlet

    Zurn Z886 Drainage Kit w/ DGC Ductile Iron Slotted Grate & Bottom Outlet

    Regular price From $1,181.66 USD
    Regular price Sale price From $1,181.66 USD
    Unit price /  per 
  • M100K-GN100KCA Galv Slotted Grate polymer concrete shallow galv edge ULMA channel

    ULMA M100K W/ Slotted Galvanized Steel Grate (1M)

    Sale

    ULMA M100K W/ Slotted Galvanized Steel Grate (1M)

    Regular price From $196.24 USD
    Regular price $246.05 USD Sale price From $196.24 USD
    Unit price /  per 
    Sale
  • Hydro Plus with 450 SS Slotted 1M Grate Class A

    ULMA HYDROPLUS with 450 / IN100KCA Stainless Steel Slotted Grate Class A

    Sale

    ULMA HYDROPLUS with 450 / IN100KCA Stainless Steel Slotted Grate Class A

    Regular price From $180.41 USD
    Regular price $229.33 USD Sale price From $180.41 USD
    Unit price /  per 
    Sale
  • HYDROPLUS - 438-SS Reinforced Wedge Wire Grate

    ULMA HYDROPLUS w/ (438) Stainless Steel Reinforced Wedge Wire Grate

    Sale

    ULMA HYDROPLUS w/ (438) Stainless Steel Reinforced Wedge Wire Grate

    Regular price From $555.63 USD
    Regular price $711.76 USD Sale price From $555.63 USD
    Unit price /  per 
    Sale
  • ULMA HYDRO PLUS with IA-JOE-0520-HP-BF Iron Age Regular Joe Heel Proof BoOF Grate_Class B

    ULMA HYDROPLUS with Iron Age IA-JOE-0520-HP-BF Regular Joe Heel Proof - BoOF

    Sale

    ULMA HYDROPLUS with Iron Age IA-JOE-0520-HP-BF Regular Joe Heel Proof - BoOF

    Regular price From $551.97 USD
    Regular price $573.86 USD Sale price From $551.97 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
  • M100K-GN100KCC Reinforced Galvanized Steel grate polymer concrete galv edge ULMA channel

    ULMA M100K Rein. Galv. Steel Slotted Grate (1M)

    Sale

    ULMA M100K Rein. Galv. Steel Slotted Grate (1M)

    Regular price From $232.52 USD
    Regular price $288.96 USD Sale price From $232.52 USD
    Unit price /  per 
    Sale
  • NDS970 6inch diameter strium sand grate

    NDS090S Atrium HDPE 6" Dia. Grate - Sand

    NDS090S Atrium HDPE 6" Dia. Grate - Sand

    Regular price $40.23 USD
    Regular price Sale price $40.23 USD
    Unit price /  per 
  • IA-Dura-Slope-CI-grate-Interlaken-BooF-6x24-TDSdrains

    Iron Age IA-INTER-0624-BF Class B Interlaken Cast Iron 6″ x 24″ Grate - BoOF

    Iron Age IA-INTER-0624-BF Class B Interlaken Cast Iron 6″ x 24″ Grate - BoOF

    Regular price $378.95 USD
    Regular price Sale price $378.95 USD
    Unit price /  per 
  • U100K with 402 Galvanized Steel Mesh Grate

    ULMA U100K Drainage Kit with ULMA 402 Mesh Grate | Galvanized

    Sale

    ULMA U100K Drainage Kit with ULMA 402 Mesh Grate | Galvanized

    Regular price From $122.69 USD
    Regular price $157.74 USD Sale price From $122.69 USD
    Unit price /  per 
    Sale
  • HYDROPLUS with Iron Age Minnione Raw Cast Iron

    ULMA HYDROPLUS w/ CLass B Iron Age MA5-20I21 / IA-MIN-0520 Minnione Raw Cast Iron Grate

    Sale

    ULMA HYDROPLUS w/ CLass B Iron Age MA5-20I21 / IA-MIN-0520 Minnione Raw Cast Iron Grate

    Regular price From $441.85 USD
    Regular price $465.78 USD Sale price From $441.85 USD
    Unit price /  per 
    Sale
  • 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

    Sale

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

    Regular price From $307.15 USD
    Regular price $388.05 USD Sale price From $307.15 USD
    Unit price /  per 
    Sale
  • ULMA M100K Drain Channel kit w/Bronze Age™ FERN Grate-RAW

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

    Sale

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

    Regular price From $351.07 USD
    Regular price $391.38 USD Sale price From $351.07 USD
    Unit price /  per 
    Sale
  • New Image Coming Soon

    Zurn ZF806 Flo-Thru® Drain with P6-GHPDE Galvanized Ductile Iron Grate - HD Z Frame

    Zurn ZF806 Flo-Thru® Drain with P6-GHPDE Galvanized Ductile Iron Grate - HD Z Frame

    Regular price From $3,215.80 USD
    Regular price Sale price From $3,215.80 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 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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