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Drainage Kits
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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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      • All Load Classes
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    • Popular Manufacturers
      • TDS
      • Bronze Age
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      • 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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  • POLYCAST 500 Kit w/ DG0622 Foam Galvanized Perforated Grate & Edging | Class A

    POLYCAST 500 Kit w/ DG0622 Foam Galvanized Perforated Grate & Edging | Class A

    POLYCAST 500 Kit w/ DG0622 Foam Galvanized Perforated Grate & Edging | Class A

    Regular price From $389.27 USD
    Regular price Sale price From $389.27 USD
    Unit price /  per 
  • POLYCAST 700 PE FRAME 640R

    POLYCAST® 700 Vinyl Ester Series Kit w/DG0640R Reinforced Slot Galvanized Grate & HDPE Frame

    POLYCAST® 700 Vinyl Ester Series Kit w/DG0640R Reinforced Slot Galvanized Grate & HDPE Frame

    Regular price From $803.73 USD
    Regular price Sale price From $803.73 USD
    Unit price /  per 
  • Hydro Plus with 440 IP100KCA Stainless Steel Perforated Grate Class A

    ULMA HYDROPLUS with 440 / IP100KCA Stainless Steel Perforated Grate Class A

    Sale

    ULMA HYDROPLUS with 440 / IP100KCA Stainless Steel Perforated Grate Class A

    Regular price From $193.45 USD
    Regular price $246.10 USD Sale price From $193.45 USD
    Unit price /  per 
    Sale
  • POLY600-SS-657R

    POLYCAST® 600 Vinyl Ester Series Kit with DG0657R Perforated Stainless Grate & Edge

    POLYCAST® 600 Vinyl Ester Series Kit with DG0657R Perforated Stainless Grate & Edge

    Regular price From $637.92 USD
    Regular price Sale price From $637.92 USD
    Unit price /  per 
  • DA6020B-Stainless Steel Edge POLYCAST

    TDS-POLYCAST DA0620B Channel Protectors/Edging Stainless Steel 48 inch

    TDS-POLYCAST DA0620B Channel Protectors/Edging Stainless Steel 48 inch

    Regular price $84.58 USD
    Regular price Sale price $84.58 USD
    Unit price /  per 
  • NDS-252GR-TDSdrains NDS Spee-D Channel Grate in green botanical

    NDS 252GR Class B ADA Compliant Heel-Proof Botanical HDPE 4" x 24" Grate - GREEN

    NDS 252GR Class B ADA Compliant Heel-Proof Botanical HDPE 4" x 24" Grate - GREEN

    Regular price $58.67 USD
    Regular price Sale price $58.67 USD
    Unit price /  per 
  • 9x9-cb-kit-lp-ci-grate-interlaken-1024x768-Recovered

    NDS 930 Low Profile 9" Catch Basin Kit with Iron Age Interlaken Grate | Natural

    NDS 930 Low Profile 9" Catch Basin Kit with Iron Age Interlaken Grate | Natural

    Regular price From $255.89 USD
    Regular price Sale price From $255.89 USD
    Unit price /  per 
  • Hydro Plus with 488 Vinylester .6 inch center 1M Grate Class C

    ULMA HYDROPLUS with (488) Vinyl Ester FRP (0.6" on center) 1M Grates Class C

    Sale

    ULMA HYDROPLUS with (488) Vinyl Ester FRP (0.6" on center) 1M Grates Class C

    Regular price From $331.70 USD
    Regular price $423.85 USD Sale price From $331.70 USD
    Unit price /  per 
    Sale
  • 24x24 drains

    Iron Age IA-LOC-CB24-BF Class B Locust Cast Iron 24"x24" Grate - BoOF

    Iron Age IA-LOC-CB24-BF Class B Locust Cast Iron 24"x24" Grate - BoOF

    Regular price $946.66 USD
    Regular price Sale price $946.66 USD
    Unit price /  per 
  • IA-BAY-0520-HP-BF Iron Age 5x20" Bay Pattern Heel Proof with Baked on Oil Finish

    Iron Age IA-BAY-0520-HP-BF Class B HP Mission Bay Cast Iron 5x20 (Nominal) Grate - BoOF

    Iron Age IA-BAY-0520-HP-BF Class B HP Mission Bay Cast Iron 5x20 (Nominal) Grate - BoOF

    Regular price $233.09 USD
    Regular price Sale price $233.09 USD
    Unit price /  per 
  • NDS400 Spee-D Channel

    NDS Spee-D® Channel HDPE 4" x 48"

    NDS Spee-D® Channel HDPE 4" x 48"

    Regular price $48.34 USD
    Regular price Sale price $48.34 USD
    Unit price /  per 
  • 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 
  • IA-JOE-0520-HP-BF Iron Age Regular Joe Heel Proof 4.8x19.6 grate - BoOF

    Iron Age IA-JOE-0520-HP-BF Class B HP Regular Joe Cast Iron 5x20 (Nominal) Grate - BoOF

    Iron Age IA-JOE-0520-HP-BF Class B HP Regular Joe Cast Iron 5x20 (Nominal) Grate - BoOF

    Regular price $233.09 USD
    Regular price Sale price $233.09 USD
    Unit price /  per 
  • POLY600-xx-675D-TDsdrains cast iron transverse ada grate polymer concrete channel Polycast

    POLYCAST 600 Series Kit with DG0675HD ADA Transverse Slotted Ductile Iron Grate

    POLYCAST 600 Series Kit with DG0675HD ADA Transverse Slotted Ductile Iron Grate

    Regular price From $223.24 USD
    Regular price Sale price From $223.24 USD
    Unit price /  per 
  • 5inch-cast-iron-grate-RiverRock-boof

    Iron Age IA-RIV-0520-BF Class B ADA River Rock Cast Iron 122mm x 500mm Grate - BoOF

    Iron Age IA-RIV-0520-BF Class B ADA River Rock Cast Iron 122mm x 500mm Grate - BoOF

    Regular price $233.09 USD
    Regular price Sale price $233.09 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
  • Hydro Plus with 454 Reinforced SS Slotted 1M Grate Class C

    ULMA HYDROPLUS with 454 Reinforced Stainless Steel Slotted Grate Class C

    Sale

    ULMA HYDROPLUS with 454 Reinforced Stainless Steel Slotted Grate Class C

    Regular price From $375.68 USD
    Regular price $480.39 USD Sale price From $375.68 USD
    Unit price /  per 
    Sale
  • NDS 12" Low Profile Catch Basin Kit w/ Iron Age Interlaken Grate | BoOF

    NDS 12" Low Profile Catch Basin Kit w/ Iron Age Interlaken Grate | BoOF

    NDS 12" Low Profile Catch Basin Kit w/ Iron Age Interlaken Grate | BoOF

    Regular price From $376.65 USD
    Regular price Sale price From $376.65 USD
    Unit price /  per 
  • DA6020B-Stainless Steel Edge POLYCAST

    TDS-POLYCAST DA0620BH Channel Protectors/Edging Stainless Steel 24"Long (Set of 2)

    TDS-POLYCAST DA0620BH Channel Protectors/Edging Stainless Steel 24"Long (Set of 2)

    Regular price $72.25 USD
    Regular price Sale price $72.25 USD
    Unit price /  per 
  • U100K-MissionBay Cast Iron deco ironage grate polymer concrete channel ULMA galv edge

    ULMA U100K Drainage Kit with Iron Age Mission Bay Grate | Natural

    Sale

    ULMA U100K Drainage Kit with Iron Age Mission Bay Grate | Natural

    Regular price From $605.00 USD
    Regular price $668.16 USD Sale price From $605.00 USD
    Unit price /  per 
    Sale
  • New Image Coming Soon

    ZURN Z884 Drainage Kit w/ P4-CG Cast Iron Slotted Grate - Bottom Outlet & Stainless Frame

    ZURN Z884 Drainage Kit w/ P4-CG Cast Iron Slotted Grate - Bottom Outlet & Stainless Frame

    Regular price From $620.91 USD
    Regular price Sale price From $620.91 USD
    Unit price /  per 
  • U100KX-438 ULMA Channel with Reinforced 438 Wedge Wire Grate

    ULMA U100KX Kit w/ 438 Reinforced Stainless Steel Wedge Wire Grate (316L)

    Sale

    ULMA U100KX Kit w/ 438 Reinforced Stainless Steel Wedge Wire Grate (316L)

    Regular price From $410.49 USD
    Regular price $517.77 USD Sale price From $410.49 USD
    Unit price /  per 
    Sale
  • New Image Coming Soon

    ULMA HYDROPLUS with 414 / GP100KCC Reinforced Galvanized Perforated Grate Class C

    Sale

    ULMA HYDROPLUS with 414 / GP100KCC Reinforced Galvanized Perforated Grate Class C

    Regular price From $179.07 USD
    Regular price $227.60 USD Sale price From $179.07 USD
    Unit price /  per 
    Sale
  • ZURN Z884 Drainage Kit w/ P4-HPP-BLACK HDPE Grate - Bottom Outlet

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

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

    Regular price From $349.18 USD
    Regular price Sale price From $349.18 USD
    Unit price /  per 
  • Slim Channel Coupler 9248

    NDS 9248 Slim Channel Coupler

    NDS 9248 Slim Channel Coupler

    Regular price $6.76 USD
    Regular price Sale price $6.76 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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