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  • Drainage Kits
    • Popular Manufacturers
      • TDS
      • NDS
      • POLYCAST®
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      • All Manufacturers
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      • Dura Slope
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      • All Drainage Systems
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      • All Drainage Systems
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  • ULMA HYDRO PLUS with ULMA 424 Galvanized Reinforced Steel Slotted-Grate Class C

    ULMA HYDROPLUS with 424 / GN100KCC Reinforced Galvanized Slotted Grate Class C

    ULMA HYDROPLUS with 424 / GN100KCC Reinforced Galvanized Slotted Grate Class C

    Regular price From $184.21 USD
    Regular price Sale price From $184.21 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 
  • GF-21224

    GF 21224 Heavy-Duty Gray Iron Slotted 12" x 24" x 2" Grate | General Foundry

    GF 21224 Heavy-Duty Gray Iron Slotted 12" x 24" x 2" Grate | General Foundry

    Regular price $211.20 USD
    Regular price Sale price $211.20 USD
    Unit price /  per 
  • U100KM-GP100KCA 402 galv. steel perforated grate class a polymer concrete galv edge ULMA channel

    ULMA U100K Drainage Kit with ULMA 410 Perforated Grate | Galvanized Class A

    ULMA U100K Drainage Kit with ULMA 410 Perforated Grate | Galvanized Class A

    Regular price From $333.68 USD
    Regular price Sale price From $333.68 USD
    Unit price /  per 
  • DP0650-GE-641D Polycast 600 Inline Catch Basin with Galvanized Edge and Ductile Iron Slotted Grates

    POLYCAST® DP0650 Inline Catch Basin w/DG0641D Slotted Ductile Iron Grate & Galv. Edge

    POLYCAST® DP0650 Inline Catch Basin w/DG0641D Slotted Ductile Iron Grate & Galv. Edge

    Regular price $454.35 USD
    Regular price Sale price $454.35 USD
    Unit price /  per 
  • TDS-POLYCAST DA0642H Locking Device for 700 series Galvanized Grates

    TDS-POLYCAST DA0642H Locking Device for 700 series Galvanized Grates

    TDS-POLYCAST DA0642H Locking Device for 700 series Galvanized Grates

    Regular price $25.10 USD
    Regular price Sale price $25.10 USD
    Unit price /  per 
  • FFK-1700 TDS Trench Era FF Series Multichannel System with USF 6455 17" Cast Iron Grate

    Trench Era FF Series Drain System w/USF 6455 17" Wide Grate - Galvanized Frame

    Trench Era FF Series Drain System w/USF 6455 17" Wide Grate - Galvanized Frame

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  • DP0650-GE-640H Polycast 600 Inline Catch Basin with Galvanized edge and slotted grates

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

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

    Regular price $609.43 USD
    Regular price Sale price $609.43 USD
    Unit price /  per 
  • GF-22424

    GF 22424 Gray Iron Slotted 24" x 24" x 2" Grate | General Foundry

    GF 22424 Gray Iron Slotted 24" x 24" x 2" Grate | General Foundry

    Regular price $453.20 USD
    Regular price Sale price $453.20 USD
    Unit price /  per 
  • ULMA HydroMini Plus with 402 Galvanized Mesh Grate load class B

    ULMA HYDROPLUS Mini with Galvanized Mesh Grate (402 / GEX100KCB) Class B

    ULMA HYDROPLUS Mini with Galvanized Mesh Grate (402 / GEX100KCB) Class B

    Regular price From $154.19 USD
    Regular price Sale price From $154.19 USD
    Unit price /  per 
  • ULMA HYDRO PLUS with Galvanized Slotted 420-Class A

    ULMA HYDROPLUS with 420 / GN100KCA Galvanized Slotted Grate Class A

    ULMA HYDROPLUS with 420 / GN100KCA Galvanized Slotted Grate Class A

    Regular price From $143.31 USD
    Regular price Sale price From $143.31 USD
    Unit price /  per 
  • 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 
  • TP0650S-GS-622 Catch Basin w/ DG0622 galvanized Foam perforated grate and edging

    TP0650S (Shallow) Catch Basin Kit w/ DG0622H & Galvanized Edge for POLYCAST®

    TP0650S (Shallow) Catch Basin Kit w/ DG0622H & Galvanized Edge for POLYCAST®

    Regular price $400.35 USD
    Regular price Sale price $400.35 USD
    Unit price /  per 
  • TP0650S-AA-640R

    TV0750S (Shallow) Catch Basin Kit w/ DG0640RH for POLYCAST®-Ductile Iron Frame

    TV0750S (Shallow) Catch Basin Kit w/ DG0640RH for POLYCAST®-Ductile Iron Frame

    Regular price $699.02 USD
    Regular price Sale price $699.02 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 $319.33 USD
    Regular price Sale price From $319.33 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 $572.14 USD
    Regular price Sale price $572.14 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 
  • TP0650S-DG0646-GE Catch basin w/ Perforated Galvanized Grate and Galvanized Edging

    TP0650S (Shallow) Catch Basin Kit w/ DG0646H & Galvanized Edge for POLYCAST®

    TP0650S (Shallow) Catch Basin Kit w/ DG0646H & Galvanized Edge for POLYCAST®

    Regular price $364.68 USD
    Regular price Sale price $364.68 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 
  • ULMA Hydro Mini Plus H80 with ULMA 410 Galvanized Steel erforated Grate Class A

    ULMA HYDROPLUS Mini with Galvanized Perforated Tread Grate (410 / GP100KCA) Class A

    ULMA HYDROPLUS Mini with Galvanized Perforated Tread Grate (410 / GP100KCA) Class A

    Regular price From $78.00 USD
    Regular price Sale price From $78.00 USD
    Unit price /  per 
  • New Image Coming Soon

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

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

    Regular price From $387.65 USD
    Regular price Sale price From $387.65 USD
    Unit price /  per 
  • DP0650-SS-692 Polycast 600 inline catch basin with stainless edge and ductile iron transverse slotted grate

    POLYCAST® DP0650 Inline Catch Basin w/DG0692 Patriot Ductile Iron Grate & Galv. Edge

    POLYCAST® DP0650 Inline Catch Basin w/DG0692 Patriot Ductile Iron Grate & Galv. Edge

    Regular price $506.58 USD
    Regular price Sale price $506.58 USD
    Unit price /  per 
  • ZURN Z884 Drainage Kit w/ P4-HPP-WHITE HDPE HDPE Grate - Bottom Outlet

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

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

    Regular price From $319.33 USD
    Regular price Sale price From $319.33 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 
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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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