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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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      • Fiberglass
      • Plastic
      • Polymer Concrete
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      • Pour in Place (Concrete)
      • All Channel Materials
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      • Load Class A
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      • All Load Classes
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    • Popular Manufacturers
      • TDS
      • Bronze Age
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      • Polylok
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      • 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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  • New Image Coming Soon

    POLYCAST 600 Series Kit w/ DG0675HD-G Transverse Slotted Ductile Iron-Galvanized Grate

    POLYCAST 600 Series Kit w/ DG0675HD-G Transverse Slotted Ductile Iron-Galvanized Grate

    Regular price From $252.40 USD
    Regular price Sale price From $252.40 USD
    Unit price /  per 
  • New Image Coming Soon

    POLYCAST®DP0750 Inline Catch Basin w/DG0641D-G Slotted Ductile Iron-Galvanized Grate and Ductile Frame

    POLYCAST®DP0750 Inline Catch Basin w/DG0641D-G Slotted Ductile Iron-Galvanized Grate and Ductile Frame

    Regular price $493.20 USD
    Regular price Sale price $493.20 USD
    Unit price /  per 
  • POLYCAST 500 Kit w/ Galvanized Edging and DG0620 Cathedral Grate | Class A

    POLYCAST 500 Kit w/ Galvanized Edging and DG0620 Cathedral Grate | Class A

    POLYCAST 500 Kit w/ Galvanized Edging and DG0620 Cathedral Grate | Class A

    Regular price From $369.65 USD
    Regular price Sale price From $369.65 USD
    Unit price /  per 
  • Hydro Plus with 402 Galvanized Mesh Class B

    ULMA HYDROPLUS with 402 / GEX100KCB Galvanized Mesh Grate Class B

    Sale

    ULMA HYDROPLUS with 402 / GEX100KCB Galvanized Mesh Grate Class B

    Regular price From $163.53 USD
    Regular price $207.63 USD Sale price From $163.53 USD
    Unit price /  per 
    Sale
  • M100K-TDS0461 Class E grate polymer concrete channel

    ULMA M100K Kit w/ TDS 461D Slotted Ductile Iron Grate & Galvanized Edge

    Sale

    ULMA M100K Kit w/ TDS 461D Slotted Ductile Iron Grate & Galvanized Edge

    Regular price From $254.69 USD
    Regular price $317.46 USD Sale price From $254.69 USD
    Unit price /  per 
    Sale
  • DP0650-GE-640H Polycast 600 Inline Catch Basin with Galvanized edge and slotted grates

    POLYCAST® DP0650 Inline Catch Basin w/DG0640H Galvanized Slotted Grate & Edge

    POLYCAST® DP0650 Inline Catch Basin w/DG0640H Galvanized Slotted Grate & Edge

    Regular price $454.65 USD
    Regular price Sale price $454.65 USD
    Unit price /  per 
  • HW FGS-FP1200 locking device

    HW FGS Locking Device for FP1200 Series Stainless Grates

    HW FGS Locking Device for FP1200 Series Stainless Grates

    Regular price $8.28 USD
    Regular price Sale price $8.28 USD
    Unit price /  per 
  • NDS 229 Stainless Steel Screws

    NDS 229 Stainless Screws for Spee-D® Channel Slotted Grates (48 PCS)

    NDS 229 Stainless Screws for Spee-D® Channel Slotted Grates (48 PCS)

    Regular price $39.28 USD
    Regular price Sale price $39.28 USD
    Unit price /  per 
  • New Image Coming Soon

    TP0650S (Shallow) Catch Basin Kit w/ DG0641D-G & Galvanized Edge for POLYCAST®

    TP0650S (Shallow) Catch Basin Kit w/ DG0641D-G & Galvanized Edge for POLYCAST®

    Regular price $392.99 USD
    Regular price Sale price $392.99 USD
    Unit price /  per 
  • DP0650-XX-640

    POLYCAST® DP0650 Inline Catch Basin w/DG0640RH Reinforced Galvanized Slotted Grate

    POLYCAST® DP0650 Inline Catch Basin w/DG0640RH Reinforced Galvanized Slotted Grate

    Regular price $543.93 USD
    Regular price Sale price $543.93 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
  • New Image Coming Soon

    Zurn Z886 Drainage Kit w/ RFSC Stainless Slotted Grate - Bottom Outlet

    Zurn Z886 Drainage Kit w/ RFSC Stainless Slotted Grate - Bottom Outlet

    Regular price From $2,026.34 USD
    Regular price Sale price From $2,026.34 USD
    Unit price /  per 
  • POLYCAST 600 Galvanized Edge Inline Catch Basin with Galvanized Steel Foam Grate

    POLYCAST® DP0650 Inline Catch Basin w/DG0622H Galvanized Foam Grate & Edge

    POLYCAST® DP0650 Inline Catch Basin w/DG0622H Galvanized Foam Grate & Edge

    Regular price $486.38 USD
    Regular price Sale price $486.38 USD
    Unit price /  per 
  • New Image Coming Soon

    POLYCAST® DP0650 Inline Catch Basin w/DG0641D-G Slotted Ductile Iron Grate with Galvanized Coating

    POLYCAST® DP0650 Inline Catch Basin w/DG0641D-G Slotted Ductile Iron Grate with Galvanized Coating

    Regular price $386.27 USD
    Regular price Sale price $386.27 USD
    Unit price /  per 
  • TP0650S-DG0641D-GE Catch Basin w/ Slotted Ductile Iron with Galvanized Edging

    TP0650S (Shallow) Catch Basin Kit w/ DG0641D & Galvanized Edge for POLYCAST®

    TP0650S (Shallow) Catch Basin Kit w/ DG0641D & Galvanized Edge for POLYCAST®

    Regular price $368.31 USD
    Regular price Sale price $368.31 USD
    Unit price /  per 
  • TP0650S - DG0675HD-GE Catch Basin w/ Cast Iron Transverse Slotted Grate and Galvanized Edging

    TP0650S (Shallow) Catch Basin Kit w/ DG0675HD & Galvanized Edge for POLYCAST®

    TP0650S (Shallow) Catch Basin Kit w/ DG0675HD & Galvanized Edge for POLYCAST®

    Regular price $386.10 USD
    Regular price Sale price $386.10 USD
    Unit price /  per 
  • Mearin-100-locking-device-CI-1024x768

    MEArin 152116 Hold-Down Device for 100 Series Galvanized Slotted Grates

    MEArin 152116 Hold-Down Device for 100 Series Galvanized Slotted Grates

    Regular price $5.18 USD
    Regular price Sale price $5.18 USD
    Unit price /  per 
  • New Image Coming Soon

    ULMA D100 Drain Channel w/406 Mesh HP Galvanized Grate - Class B

    Sale

    ULMA D100 Drain Channel w/406 Mesh HP Galvanized Grate - Class B

    Regular price From $349.10 USD
    Regular price $387.65 USD Sale price From $349.10 USD
    Unit price /  per 
    Sale
  • 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 HDPE Grate - Bottom Outlet

    ZURN Z884 Drainage Kit w/ P4-HPP-DK-GREY HDPE HDPE Grate - Bottom Outlet

    Regular price From $349.18 USD
    Regular price Sale price From $349.18 USD
    Unit price /  per 
  • DP0650-Catch Basin

    POLYCAST® DP0750 Inline Catch Basin w/DG0646R Perforated Galvanized Grate & HDPE Frame

    POLYCAST® DP0750 Inline Catch Basin w/DG0646R Perforated Galvanized Grate & HDPE Frame

    Regular price $557.04 USD
    Regular price Sale price $557.04 USD
    Unit price /  per 
  • ZURN Z884 Drainage Kit w/ P4-HPP-TEA&CREAM HDPE HDPE Grate - Bottom Outlet

    ZURN Z884 Drainage Kit w/ P4-HPP-TEA&CREAM HDPE HDPE Grate - Bottom Outlet

    ZURN Z884 Drainage Kit w/ P4-HPP-TEA&CREAM HDPE HDPE Grate - Bottom Outlet

    Regular price From $349.18 USD
    Regular price Sale price From $349.18 USD
    Unit price /  per 
  • TP0650S - DG0692-GE Catch Basin w/ Patriot Grate and Galvanized Edging

    TP0650S (Shallow) Catch Basin Kit w/DG0692 & Galvanized Edge for POLYCAST®

    TP0650S (Shallow) Catch Basin Kit w/DG0692 & Galvanized Edge for POLYCAST®

    Regular price $420.55 USD
    Regular price Sale price $420.55 USD
    Unit price /  per 
  • DP0750 Polycast inline catch basin with Ductile Iron Frame and Reinforced Galvanized Steel

    POLYCAST® DP0750 Inline Catch Basin w/DG0640RH Reinforced Galvanized Slot Grate & DI Frame

    POLYCAST® DP0750 Inline Catch Basin w/DG0640RH Reinforced Galvanized Slot Grate & DI Frame

    Regular price $620.32 USD
    Regular price Sale price $620.32 USD
    Unit price /  per 
  • ULMA D100 with 410 perforated stainless steel grate

    ULMA D100 Drain Channel w/410 Perforated w/Tread Galvanized Grate - Class A

    Sale

    ULMA D100 Drain Channel w/410 Perforated w/Tread Galvanized Grate - Class A

    Regular price From $249.86 USD
    Regular price $262.54 USD Sale price From $249.86 USD
    Unit price /  per 
    Sale
  • New Image Coming Soon

    ULMA D100 Drain Channel w/402 Mesh Galvanized Grate - Class B

    Sale

    ULMA D100 Drain Channel w/402 Mesh Galvanized Grate - Class B

    Regular price From $310.24 USD
    Regular price $337.69 USD Sale price From $310.24 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 $26.22
  • 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
  • LD100X-2 Locking Device for ULMA Grates

    LD100X-2 Locking Device for ULMA Grates

    $12.96 $10.08
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