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Drainage Kits
  • Shop All
  • 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
      • Polymer Concrete
      • Stainless Steel
      • Pour in Place (Concrete)
      • All Channel Materials
    • Load Class
      • Load Class A
      • Load Class B
      • Load Class C
      • 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
      • Aluminum
      • Bronze
      • Ductile/Cast Iron
      • Fiberglass
      • Galvanized Steel
      • Plastic
      • Stainless Steel
      • All Grate Materials
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  • ABT 2811B Locking Device

    2811B Hold-Down Device for ABT POLYDRAIN with Ductile Iron Grate

    2811B Hold-Down Device for ABT POLYDRAIN with Ductile Iron Grate

    Regular price $7.62 USD
    Regular price Sale price $7.62 USD
    Unit price /  per 
  • ABT 2412 Reinforced Galvanized Steel Perforated Grate

    ABT 2412 Reinforced Galvanized Steel Perforated Grate

    ABT 2412 Reinforced Galvanized Steel Perforated Grate

    Regular price $117.23 USD
    Regular price Sale price $117.23 USD
    Unit price /  per 
  • LC438G516 ABT Replacement Lock Bar-interior

    Replacement Galvanized Lock Bar for ABT and MEArin - LC438G516

    Replacement Galvanized Lock Bar for ABT and MEArin - LC438G516

    Regular price $2.54 USD
    Regular price Sale price $2.54 USD
    Unit price /  per 
  • TDS 461D Universal Ductile Iron Grate

    TDS 461D Class E Slotted Ductile Iron 122mm x 500mm Grate

    TDS 461D Class E Slotted Ductile Iron 122mm x 500mm Grate

    Regular price $50.54 USD
    Regular price Sale price $50.54 USD
    Unit price /  per 
  • IA-Inter-0520-BF Iron Age Interlaken 5x20" Cast Iron Baked on Oil Finish Grate

    Iron Age IA-INTER-0520-BF Class B Interlaken Cast Iron 122mm x 500mm Grates - BoOF

    Iron Age IA-INTER-0520-BF Class B Interlaken Cast Iron 122mm x 500mm Grates - BoOF

    Regular price $223.08 USD
    Regular price Sale price $223.08 USD
    Unit price /  per 
  • 5inch-cast-iron-que-hp

    Iron Age IA-QUE-0520-HP Class B Heel-Proof Cast Iron 122mm x 500mm Grate - RAW

    Iron Age IA-QUE-0520-HP Class B Heel-Proof Cast Iron 122mm x 500mm Grate - RAW

    Regular price $167.31 USD
    Regular price Sale price $167.31 USD
    Unit price /  per 
  • 5inch-cast-iron-grate-carbochon-raw2-1024x768

    Iron Age IA-CARB-0520 Class B Carbochon Cast Iron 122mm x 500mm Grates - RAW

    Iron Age IA-CARB-0520 Class B Carbochon Cast Iron 122mm x 500mm Grates - RAW

    Regular price $167.31 USD
    Regular price Sale price $167.31 USD
    Unit price /  per 
  • IA-ARGO-0520-BF BoOF cast iron decorative grate

    Iron Age IA-ARGO-0520-HP-BF AA5-20I21HP Class B Argo ADA/HP Cast Iron 122mmx500mm BoOF

    Iron Age IA-ARGO-0520-HP-BF AA5-20I21HP Class B Argo ADA/HP Cast Iron 122mmx500mm BoOF

    Regular price $223.08 USD
    Regular price Sale price $223.08 USD
    Unit price /  per 
  • 5inch-cast-iron-grate-Janis-BooF2

    Iron Age IA-JANIS-0520-BF Class B Janis Cast Iron 122mm x 500mm Grate - BoOF

    Iron Age IA-JANIS-0520-BF Class B Janis Cast Iron 122mm x 500mm Grate - BoOF

    Regular price $223.08 USD
    Regular price Sale price $223.08 USD
    Unit price /  per 
  • 5inch-cast-iron-grate-Janis-raw2

    Iron Age IA-JANIS-0520 Class B Janis Cast Iron 122mm x 500mm Grate - RAW

    Iron Age IA-JANIS-0520 Class B Janis Cast Iron 122mm x 500mm Grate - RAW

    Regular price $167.31 USD
    Regular price Sale price $167.31 USD
    Unit price /  per 
  • Bronze Age™ BA-FERN-0520 Ductile Iron 5" x 20" Grate - RAW

    Bronze Age™ BA-FERN-0520 Ductile Iron 5" x 20" Grate - RAW

    Bronze Age™ BA-FERN-0520 Ductile Iron 5" x 20" Grate - RAW

    Regular price $87.50 USD
    Regular price Sale price $87.50 USD
    Unit price /  per 
  • BA-PED-0520

    Bronze Age™ BA-PED-0520 Ductile Iron 5" x 20" Grate - RAW

    Bronze Age™ BA-PED-0520 Ductile Iron 5" x 20" Grate - RAW

    Regular price $87.50 USD
    Regular price Sale price $87.50 USD
    Unit price /  per 
  • IA-JOE-0520-BF Iron Age Regular Joe 5x20" Baked on Oil Finish Grate

    Iron Age IA-JOE-0520-BF Class B Regular Joe Cast Iron 122mm x 500mm Grate - BoOF

    Iron Age IA-JOE-0520-BF Class B Regular Joe Cast Iron 122mm x 500mm Grate - BoOF

    Regular price $223.08 USD
    Regular price Sale price $223.08 USD
    Unit price /  per 
  • 5inch-cast-iron-que-hp-bk

    Iron Age IA-QUE-0520-HP-BF Class B Heel-Proof Cast Iron 122mm x 500mm Grate - BoOF

    Iron Age IA-QUE-0520-HP-BF Class B Heel-Proof Cast Iron 122mm x 500mm Grate - BoOF

    Regular price $223.08 USD
    Regular price Sale price $223.08 USD
    Unit price /  per 
  • Iron Age 5x20 Oblio Cast Iron Grate - BoOF

    Iron Age IA-OBLIO-0520-BF Class B OBLIO Cast Iron 122mm x 500mm Grate - BoOF

    Iron Age IA-OBLIO-0520-BF Class B OBLIO Cast Iron 122mm x 500mm Grate - BoOF

    Regular price $223.08 USD
    Regular price Sale price $223.08 USD
    Unit price /  per 
  • IA-OBLIO-0520-HP-BF

    Iron Age IA-OBLIO-0520-HP-BF Class B OBLIO Heelproof Cast Iron 122mm x 500mm Grate - BoOF

    Iron Age IA-OBLIO-0520-HP-BF Class B OBLIO Heelproof Cast Iron 122mm x 500mm Grate - BoOF

    Regular price $223.08 USD
    Regular price Sale price $223.08 USD
    Unit price /  per 
  • Bronze Age™ BA-LUNA-0520 Ductile Iron 5" x 20" Grate - RAW

    Bronze Age™ BA-LUNA-0520 Ductile Iron 5" x 20" Grate - RAW

    Bronze Age™ BA-LUNA-0520 Ductile Iron 5" x 20" Grate - RAW

    Regular price $87.50 USD
    Regular price Sale price $87.50 USD
    Unit price /  per 
  • Polycast-600Channel-DK polymer concrete pre sloped channel

    POLYCAST 600 Series Channels

    POLYCAST 600 Series Channels

    Regular price From $126.77 USD
    Regular price Sale price From $126.77 USD
    Unit price /  per 
  • IA-OBLIO-0520

    Iron Age IA-OBLIO-0520 Class B OBLIO Cast Iron 122mm x 500mm Grate - RAW

    Iron Age IA-OBLIO-0520 Class B OBLIO Cast Iron 122mm x 500mm Grate - RAW

    Regular price $167.31 USD
    Regular price Sale price $167.31 USD
    Unit price /  per 
  • Bronze Age™ BA-CATH-0520 Ductile Iron 5" x 20" Grate - RAW

    Bronze Age™ BA-CATH-0520 Ductile Iron 5" x 20" Grate - RAW

    Bronze Age™ BA-CATH-0520 Ductile Iron 5" x 20" Grate - RAW

    Regular price $87.50 USD
    Regular price Sale price $87.50 USD
    Unit price /  per 
  • Iron Age 5 Inch Cast Iron Greek Key Raw Grate

    Iron Age IA-GRK-0520 Class B Greek Key Cast Iron 122mm x 500mm Grate - RAW

    Iron Age IA-GRK-0520 Class B Greek Key Cast Iron 122mm x 500mm Grate - RAW

    Regular price $167.31 USD
    Regular price Sale price $167.31 USD
    Unit price /  per 
  • Polycast-500-channel-DK low profile polymer concrete channel shallow

    POLYCAST 500 Series Channel

    POLYCAST 500 Series Channel

    Regular price $83.43 USD
    Regular price Sale price $83.43 USD
    Unit price /  per 
  • 5x20 Iron Age Cast-Iron Grate Locust Grate Raw Finish

    Iron Age IA-LOC-0520 Class B Locust Cast Iron 122mm x 500mm Grate - RAW

    Iron Age IA-LOC-0520 Class B Locust Cast Iron 122mm x 500mm Grate - RAW

    Regular price $167.31 USD
    Regular price Sale price $167.31 USD
    Unit price /  per 
  • IA-CARB-0520-BF Iron Age Carbochon 5x20" Baked on Oil Finish cast iron

    Iron Age IA-CARB-0520-BF Class B Carbochon Cast Iron 122mm x 500mm Grates - BoOF

    Iron Age IA-CARB-0520-BF Class B Carbochon Cast Iron 122mm x 500mm Grates - BoOF

    Regular price $223.08 USD
    Regular price Sale price $223.08 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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