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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)
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      • All Load Classes
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      • TDS
      • Bronze Age
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      • Polylok
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      • Zurn
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      • 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
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  • DG0621 Transverse SLOT Galvanized Steel POLYCAST and SS600

    Bronze Age DG0621H SLOT Galvanized Steel 5.25" x 24" (Nominal) Grate | Class A

    Bronze Age DG0621H SLOT Galvanized Steel 5.25" x 24" (Nominal) Grate | Class A

    Regular price $79.05 USD
    Regular price Sale price $79.05 USD
    Unit price /  per 
  • PCK6-DG0640 POLYCAST with Galvanized Steel Slotted Grate

    POLYCAST®600 Series Kit w/ DG0640 Slotted Galvanized Grate | Load Class B

    POLYCAST®600 Series Kit w/ DG0640 Slotted Galvanized Grate | Load Class B

    Regular price From $212.50 USD
    Regular price Sale price From $212.50 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
  • LC438G516 ABT Replacement Lock Bar-interior

    Replacement Galvanized Lock Bar for ABT and MEArin - 20-0111-ZC

    Replacement Galvanized Lock Bar for ABT and MEArin - 20-0111-ZC

    Regular price $2.54 USD
    Regular price Sale price $2.54 USD
    Unit price /  per 
  • POLY600-XX-640R-TDSdrains

    POLYCAST 600 Series Kit with DG0640R Slotted Galvanized Grate

    POLYCAST 600 Series Kit with DG0640R Slotted Galvanized Grate

    Regular price From $367.29 USD
    Regular price Sale price From $367.29 USD
    Unit price /  per 
  • DG0620 Cathedral Galvanized Steel POLYCAST and SS600

    Bronze Age DG0620H CATH Galvanized Steel 5.25" x 24" (Nominal) Grate | Class A

    Bronze Age DG0620H CATH Galvanized Steel 5.25" x 24" (Nominal) Grate | Class A

    Regular price $93.13 USD
    Regular price Sale price $93.13 USD
    Unit price /  per 
  • POLYCAST 500 DG0640 Galvanized edge

    POLYCAST 500 Series Kit with DG0640 Slotted Galvanized Grate and Edging

    POLYCAST 500 Series Kit with DG0640 Slotted Galvanized Grate and Edging

    Regular price From $334.46 USD
    Regular price Sale price From $334.46 USD
    Unit price /  per 
  • Stainless Steel Perforated 3 inch Mini Channel Grate

    Perforated 316 Stainless Steel Grate 3″x12″ Load Class B

    Perforated 316 Stainless Steel Grate 3″x12″ Load Class B

    Regular price $83.00 USD
    Regular price Sale price $83.00 USD
    Unit price /  per 
  • New Image Coming Soon

    POLYCAST 500 Series Kit w/ DG0646R Reinforced Galvanized Slot Grate-Ductile Iron Frame

    POLYCAST 500 Series Kit w/ DG0646R Reinforced Galvanized Slot Grate-Ductile Iron Frame

    Regular price From $853.30 USD
    Regular price Sale price From $853.30 USD
    Unit price /  per 
  • DG0645 Galvanized Steel Solid Cover for POLYCAST

    POLYCAST DG0645 ADA Compliant Galvanized Steel Solid 6" x 48" Cover Class A

    POLYCAST DG0645 ADA Compliant Galvanized Steel Solid 6" x 48" Cover Class A

    Regular price $66.37 USD
    Regular price Sale price $66.37 USD
    Unit price /  per 
  • ULMA 406_407 GEHX100KCB-Mesh Heelproof Galvanized grate

    ULMA 406 / GEHX100KCB Mesh Heelproof Galvanized Grate 1M Class B

    Sale

    ULMA 406 / GEHX100KCB Mesh Heelproof Galvanized Grate 1M Class B

    Regular price $117.15 USD
    Regular price $150.62 USD Sale price $117.15 USD
    Unit price /  per 
    Sale
  • DG0620 Cathedral Galvanized Steel POLYCAST and SS600

    Bronze Age™ DG0620 CATH Galvanized Steel 5.25" x 48" Grate

    Bronze Age™ DG0620 CATH Galvanized Steel 5.25" x 48" Grate

    Regular price $99.30 USD
    Regular price Sale price $99.30 USD
    Unit price /  per 
  • LPK09-915 NDS Low Profile Adapter with a NDS 915 Galvanized Bar Grate

    NDS 9" Low Profile Catch Basin Kit w/ NDS 915 Bar Grate | Galvanized

    NDS 9" Low Profile Catch Basin Kit w/ NDS 915 Bar Grate | Galvanized

    Regular price From $140.58 USD
    Regular price Sale price From $140.58 USD
    Unit price /  per 
  • Zurn_Z884_HDPE_Plastic_Grate_4_x_20-Dark_Gray Z884 drain kit with Dark gray slotted grate

    ZURN Z884 Drainage Kit w/ P4-HPP-DK -GREY HDPE Slotted Grate - Vandal Proof Locks & Bottom Outlet

    ZURN Z884 Drainage Kit w/ P4-HPP-DK -GREY HDPE Slotted Grate - Vandal Proof Locks & Bottom Outlet

    Regular price From $399.80 USD
    Regular price Sale price From $399.80 USD
    Unit price /  per 
  • New Image Coming Soon

    POLYCAST® DP0650 Inline Catch Basin w/DG0641D-G Slotted Ductile Iron Grate with Galvanized coating & Galv. Edge

    POLYCAST® DP0650 Inline Catch Basin w/DG0641D-G Slotted Ductile Iron Grate with Galvanized coating & Galv. Edge

    Regular price $479.02 USD
    Regular price Sale price $479.02 USD
    Unit price /  per 
  • New Image Coming Soon

    POLYCAST 500 Series Kit w/ DG0640R Reinforced Galvanized Slot Grate and HDPE Frame

    POLYCAST 500 Series Kit w/ DG0640R Reinforced Galvanized Slot Grate and HDPE Frame

    Regular price From $612.03 USD
    Regular price Sale price From $612.03 USD
    Unit price /  per 
  • DG0640 POLYCAST Galvanized Slotted Grate

    POLYCAST DG0640H Slotted Galvanized 6" x 24" Grate | Load Class B

    POLYCAST DG0640H Slotted Galvanized 6" x 24" Grate | Load Class B

    Regular price $49.61 USD
    Regular price Sale price $49.61 USD
    Unit price /  per 
  • ULMA Stainless Steel Perforated Grate IP100KCA 440_IP100KCAM 441

    ULMA 440 / IP100KCA Class A Perforated w/Tread Stainless Steel 124mm x 1M Grate

    Sale

    ULMA 440 / IP100KCA Class A Perforated w/Tread Stainless Steel 124mm x 1M Grate

    Regular price $107.66 USD
    Regular price $138.42 USD Sale price $107.66 USD
    Unit price /  per 
    Sale
  • ZURN P6-BG Galvanized Cast Iron H-20 Bar Grate 6x20

    Zurn P6-BG Galvanized Ductile Iron H-20 Bar Grate 6" x 20" Grate | Class C

    Zurn P6-BG Galvanized Ductile Iron H-20 Bar Grate 6" x 20" Grate | Class C

    Regular price $154.40 USD
    Regular price Sale price $154.40 USD
    Unit price /  per 
  • DS-221 Galanized Slotted

    NDS DS-221 Class B Slotted Galvanized 6" x 24" Grate

    NDS DS-221 Class B Slotted Galvanized 6" x 24" Grate

    Regular price $82.23 USD
    Regular price Sale price $82.23 USD
    Unit price /  per 
  • Polycast-DG0657-TDSdrains stainless perforated reinforced Polycast grate

    POLYCAST DG0657H ADA Perforated Stainless Steel 6" x 24" (Nominal) Grate Class B

    POLYCAST DG0657H ADA Perforated Stainless Steel 6" x 24" (Nominal) Grate Class B

    Regular price $146.97 USD
    Regular price Sale price $146.97 USD
    Unit price /  per 
  • ULMA Hydro Mini Plus with 406 Heelproof Galvanized Mesh Grate load class B

    ULMA HYDROPLUS Mini with Galvanized Mesh Heelproof Grate (406 / GEHX100KCB) Class B

    Sale

    ULMA HYDROPLUS Mini with Galvanized Mesh Heelproof Grate (406 / GEHX100KCB) Class B

    Regular price From $164.11 USD
    Regular price $204.14 USD Sale price From $164.11 USD
    Unit price /  per 
    Sale
  • FG1248R Galvanized Steel Bar Grate for FP1200

    TDS DG1248R Class C Galvanized Steel 14" x 24" x 1.5" Grate

    TDS DG1248R Class C Galvanized Steel 14" x 24" x 1.5" Grate

    Regular price $556.14 USD
    Regular price Sale price $556.14 USD
    Unit price /  per 
  • ULMA HYDRO PLUS with Galvanized Slotted 420-Class A

    ULMA HYDROPLUS with 420 / GN100KCA Galvanized Slotted Grate Class A

    Sale

    ULMA HYDROPLUS with 420 / GN100KCA Galvanized Slotted Grate Class A

    Regular price From $112.01 USD
    Regular price $145.13 USD Sale price From $112.01 USD
    Unit price /  per 
    Sale
  • Polycast 500 with Ductile Iron Patriot Grate galvanized steel edge

    POLYCAST 500 Series Kit with DG0692 Patriot Ductile Iron Grate and Galvanized Edging

    POLYCAST 500 Series Kit with DG0692 Patriot Ductile Iron Grate and Galvanized Edging

    Regular price From $473.45 USD
    Regular price Sale price From $473.45 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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