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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
    • Channel Materials
      • Fiberglass
      • Plastic
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      • Pour in Place (Concrete)
      • All Channel Materials
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      • Load Class A
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      • Load Class D
      • Load Class E
      • Load Class F
      • All Load Classes
  • Grates
    • 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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      • Bronze
      • Ductile/Cast Iron
      • Fiberglass
      • Galvanized Steel
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      • Stainless Steel
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  • M100KX w/Ductile Iron Slotted Grate Class C (460)-ULMA

    M100KX w/Ductile Iron Slotted Grate Class C (460)-ULMA

    Sale

    M100KX w/Ductile Iron Slotted Grate Class C (460)-ULMA

    Regular price From $309.23 USD
    Regular price $387.59 USD Sale price From $309.23 USD
    Unit price /  per 
    Sale
  • Iron 18 x 18 decorative grate

    Iron Age IA-INTER-CB18 Class B Interlaken Cast Iron 18" x 18" Grate - RAW

    Iron Age IA-INTER-CB18 Class B Interlaken Cast Iron 18" x 18" Grate - RAW

    Regular price $604.89 USD
    Regular price Sale price $604.89 USD
    Unit price /  per 
  • 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
  • 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 5 inch Channel showing side outlet

    ULMA HYDROPLUS Channel 1M Section

    Sale

    ULMA HYDROPLUS Channel 1M Section

    Regular price $20.00 USD
    Regular price $20.00 USD Sale price $20.00 USD
    Unit price /  per 
    Sale
  • J-4223-01 Heavy Duty Cast Iron 14" x 24" x 1.5" Grate | D&L Foundry

    J-4223-01 Heavy Duty Cast Iron 14" x 24" x 1.5" Grate | D&L Foundry

    J-4223-01 Heavy Duty Cast Iron 14" x 24" x 1.5" Grate | D&L Foundry

    Regular price $251.52 USD
    Regular price Sale price $251.52 USD
    Unit price /  per 
  • 24 inch Iron Age Interlaken Raw Cast Iron Grate Raw

    Iron Age IA-INTER-CB24-FW (IX24-24|99FW) Class B Interlaken Cast Iron 24" x 24" Grate - RAW

    Iron Age IA-INTER-CB24-FW (IX24-24|99FW) Class B Interlaken Cast Iron 24" x 24" Grate - RAW

    Regular price $577.72 USD
    Regular price Sale price $577.72 USD
    Unit price /  per 
  • ULMA U100KX-Rain-BoOF

    ULMA U100KX w/ Iron Age Rain Grate-BoOF

    Sale

    ULMA U100KX w/ Iron Age Rain Grate-BoOF

    Regular price From $351.82 USD
    Regular price $385.74 USD Sale price From $351.82 USD
    Unit price /  per 
    Sale
  • ULMA HYDROPLUS Mini w/ WAVE Ductile Iron Grate Class C

    ULMA HYDROPLUS Mini w/ WAVE Ductile Iron Grate Class C

    Sale

    ULMA HYDROPLUS Mini w/ WAVE Ductile Iron Grate Class C

    Regular price From $228.68 USD
    Regular price $237.16 USD Sale price From $228.68 USD
    Unit price /  per 
    Sale
  • Polycast 600 with Vinyl Ester Polymer channels and DG0655R Reinforced Wedge wire grates

    POLYCAST® 600 Vinyl Ester Series Kit with DG0655R Reinforced Stainless Wedge Wire Grate

    POLYCAST® 600 Vinyl Ester Series Kit with DG0655R Reinforced Stainless Wedge Wire Grate

    Regular price From $609.79 USD
    Regular price Sale price From $609.79 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

    Sale

    ULMA HYDROPLUS Mini w/ Iron Age 5" Janis 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 HYDROPLUS Mini Channel - Bottom View

    ULMA HYDROPLUS Mini with Stainless Steel Slotted Grate (454 / IN100KCC) Class C

    Sale

    ULMA HYDROPLUS Mini with Stainless Steel Slotted Grate (454 / IN100KCC) Class C

    Regular price From $337.52 USD
    Regular price $427.09 USD Sale price From $337.52 USD
    Unit price /  per 
    Sale
  • HYDROM-ANISE-0520-HP-BF ULMA HYDROPLUS Anise 0520-BOOF

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

    Sale

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

    Regular price From $474.10 USD
    Regular price $482.58 USD Sale price From $474.10 USD
    Unit price /  per 
    Sale
  • POLY600-SS-675 Polycast 600 Kit with DG0675 Transverse slot HDPE Plastic Grates with a Stainless Steel Edge

    POLYCAST® 600 Vinyl Ester Series Kit with DG0675 Slotted HDPE Grate & Stainless Edge

    POLYCAST® 600 Vinyl Ester Series Kit with DG0675 Slotted HDPE Grate & Stainless Edge

    Regular price From $357.41 USD
    Regular price Sale price From $357.41 USD
    Unit price /  per 
  • MCKS-BA-CATH-BF Mini Channel Kit with Sand Channel Bronze Age BoOF Ductile Iron Grate

    NDS® 3" Sand Mini Channel Kit with TDS Bronze Age™ Cathedral Grate -BoOF

    NDS® 3" Sand Mini Channel Kit with TDS Bronze Age™ Cathedral Grate -BoOF

    Regular price From $258.32 USD
    Regular price Sale price From $258.32 USD
    Unit price /  per 
  • NDS-speeD400-240-TDSdrains

    NDS Spee-D® Channel w/ 240 Slotted HDPE 4"x24" White Grate

    NDS Spee-D® Channel w/ 240 Slotted HDPE 4"x24" White Grate

    Regular price From $128.70 USD
    Regular price Sale price From $128.70 USD
    Unit price /  per 
  • ULMA Hydro Mini Plus with IA-GRK-0520-BF Iron Age Greek Key BoOF Grate Class B

    HYDROPLUS Mini w/ Iron Age 5"x 20" Greek Key BoOF Cast Iron Grate | Class B

    Sale

    HYDROPLUS Mini w/ Iron Age 5"x 20" Greek Key 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
  • ULMA HYDRO PLUS with IA-JOE-0520-BF Iron Age Regular Joe BoOF Grate_Class B

    ULMA HYDROPLUS with Iron Age Regular Joe Cast Iron Grate IA-JOE-0520-BF - BoOF

    Sale

    ULMA HYDROPLUS with Iron Age Regular Joe Cast Iron Grate IA-JOE-0520-BF - 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 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

    Sale

    HYDROPLUS Mini w/ Iron Age 5"x20" Greek Key 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 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

    Sale

    ULMA HYDROPLUS Mini w/ Iron Age 5" Locust 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
  • 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 D100_0.6 Vinyl Ester FRP 488 Grate

    ULMA D100 Drain Channel w/488 Slotted Fiberglass Grate - Class C

    Sale

    ULMA D100 Drain Channel w/488 Slotted Fiberglass Grate - Class C

    Regular price From $478.41 USD
    Regular price $553.91 USD Sale price From $478.41 USD
    Unit price /  per 
    Sale
  • New Image Coming Soon

    ULMA HYDROPLUS w/ 465 Slotted Ductile Iron Grate - Class B

    Sale

    ULMA HYDROPLUS w/ 465 Slotted Ductile Iron Grate - Class B

    Regular price From $141.93 USD
    Regular price $179.86 USD Sale price From $141.93 USD
    Unit price /  per 
    Sale
  • MCKS-BA-RAIN-D Mini Channel in Sand with TDS Bronze Age Rain Drop Ductile Iron Grate

    NDS 3" Sand Mini Channel Kit with TDS Bronze Age Rain Drop Grate - Ductile Iron

    NDS 3" Sand Mini Channel Kit with TDS Bronze Age Rain Drop Grate - Ductile Iron

    Regular price From $183.32 USD
    Regular price Sale price From $183.32 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 
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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 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

    $80.36 $62.50
  • 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 $26.22
  • LD100X-2 Locking Device for ULMA Grates

    LD100X-2 Locking Device for ULMA Grates

    $12.96 $10.08
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