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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
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      • 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
      • 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
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      • Ductile/Cast Iron
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  • 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 $174.46 USD
    Regular price Sale price $174.46 USD
    Unit price /  per 
  • ULMA U100KX polymer concrete pre-sloped stainless edged channel with ductile iron class E grate

    ULMA U100KX Drainage Kit w/ TDS 461D Slotted Ductile Iron Grate

    Sale

    ULMA U100KX Drainage Kit w/ TDS 461D Slotted Ductile Iron Grate

    Regular price From $456.35 USD
    Regular price $576.74 USD Sale price From $456.35 USD
    Unit price /  per 
    Sale
  • ZURN Z884 Drainage Kit w/ P4-PG Galvanized Perforated Grate - Vandal Proof Locks

    ZURN Z884 Drainage Kit w/ P4-PG Galvanized Perforated Grate - Vandal Proof Locks

    ZURN Z884 Drainage Kit w/ P4-PG Galvanized Perforated Grate - Vandal Proof Locks

    Regular price From $414.95 USD
    Regular price Sale price From $414.95 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 
  • 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 $233.09 USD
    Regular price Sale price $233.09 USD
    Unit price /  per 
  • M100KX Polymer concrete linear channel with stainless steel edge with 495 grey poly grates

    ULMA M100KX Kit with 495 / PNH100KCAM-GRIS ADA Heel-Proof Poly Grate -GRAY

    Sale

    ULMA M100KX Kit with 495 / PNH100KCAM-GRIS ADA Heel-Proof Poly Grate -GRAY

    Regular price From $301.11 USD
    Regular price $377.15 USD Sale price From $301.11 USD
    Unit price /  per 
    Sale
  • TP0650S Catch basin with DG0647 SS Slotted Grate and SS Edging

    TV0650S (Shallow) Catch Basin Kit w/ DG0647H & Stainless Edge for POLYCAST®

    TV0650S (Shallow) Catch Basin Kit w/ DG0647H & Stainless Edge for POLYCAST®

    Regular price $609.70 USD
    Regular price Sale price $609.70 USD
    Unit price /  per 
  • NDS 240 - Box of 12 - Class B ADA Compliant Slotted HDPE 4" x 24" Grate - WHITE

    NDS 240 - Box of 12 - Class B ADA Compliant Slotted HDPE 4" x 24" Grate - WHITE

    NDS 240 - Box of 12 - Class B ADA Compliant Slotted HDPE 4" x 24" Grate - WHITE

    Regular price $461.21 USD
    Regular price Sale price $461.21 USD
    Unit price /  per 
  • Z884-P4-PG ZURN Z884 with Galv Perf Class A

    ZURN Z884 Drainage Kit w/ P4-PG Galvanized Perforated Class A Grates

    ZURN Z884 Drainage Kit w/ P4-PG Galvanized Perforated Class A Grates

    Regular price From $364.34 USD
    Regular price Sale price From $364.34 USD
    Unit price /  per 
  • POLY600-GS-692-TDSdrains cast iron patriot grate galv steel edge polymer concrete channel Polycast

    POLYCAST® 600 Series Kit w/ DG0692 Patriot Ductile Iron Grate & Galvanized Edging

    POLYCAST® 600 Series Kit w/ DG0692 Patriot Ductile Iron Grate & Galvanized Edging

    Regular price From $289.28 USD
    Regular price Sale price From $289.28 USD
    Unit price /  per 
  • POLY700-AA-669-TDSdrains

    POLYCAST 700 Series Kit with DG0669 Stainless Bar Grate and Ductile Iron Frame

    POLYCAST 700 Series Kit with DG0669 Stainless Bar Grate and Ductile Iron Frame

    Regular price From $1,590.58 USD
    Regular price Sale price From $1,590.58 USD
    Unit price /  per 
  • DG3044 Fiberglass I-Grate

    TDS FG3044 Class C VE Fiberglass I-Bar with Grit 8" x 48" Grate

    TDS FG3044 Class C VE Fiberglass I-Bar with Grit 8" x 48" Grate

    Regular price $496.05 USD
    Regular price Sale price $496.05 USD
    Unit price /  per 
  • POLY600-GS-646R

    POLYCAST® 600 Series Kit w/ DG0646R Perforated Galvanized Steel Grate & Edge

    POLYCAST® 600 Series Kit w/ DG0646R Perforated Galvanized Steel Grate & Edge

    Regular price From $362.45 USD
    Regular price Sale price From $362.45 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 $233.09 USD
    Regular price Sale price $233.09 USD
    Unit price /  per 
  • POLYCAST polymer concrete channel with Stainless Steel Wire Wedge Grate

    POLYCAST 600 Series Kit with DG0655 Wedge Wire Stainless Steel Grate - Load Class B

    POLYCAST 600 Series Kit with DG0655 Wedge Wire Stainless Steel Grate - Load Class B

    Regular price From $277.42 USD
    Regular price Sale price From $277.42 USD
    Unit price /  per 
  • NDS-Dura-661LG-TDSdrains light gray slotted

    NDS® DS-661LG Class B ADA Compliant Slotted Polyolefin 6" x 24" Grate - LIGHT GRAY

    NDS® DS-661LG Class B ADA Compliant Slotted Polyolefin 6" x 24" Grate - LIGHT GRAY

    Regular price $66.35 USD
    Regular price Sale price $66.35 USD
    Unit price /  per 
  • ZURN Z884 Drainage Kit w/ P4-PS Stainless Steel Perforated Class A Grates

    ZURN Z884 Drainage Kit w/ P4-PS Stainless Steel Perforated Class A Grates

    ZURN Z884 Drainage Kit w/ P4-PS Stainless Steel Perforated Class A Grates

    Regular price From $558.81 USD
    Regular price Sale price From $558.81 USD
    Unit price /  per 
  • Polycast 700 with DG0646R Reinforced perforated Galvanized Steel Grates and Cast Iron Frame

    POLYCAST®700 Kit w/DG0646R Reinforced Perforated Galvanized Grate-Cast Frame

    POLYCAST®700 Kit w/DG0646R Reinforced Perforated Galvanized Grate-Cast Frame

    Regular price From $389.01 USD
    Regular price Sale price From $389.01 USD
    Unit price /  per 
  • DP0750-AA-DG0641D

    POLYCAST®DP0750 Inline Catch Basin w/DG0641D Cast Iron Slotted Grate and Frame

    POLYCAST®DP0750 Inline Catch Basin w/DG0641D Cast Iron Slotted Grate and Frame

    Regular price $468.52 USD
    Regular price Sale price $468.52 USD
    Unit price /  per 
  • HYDROM-PM-EC

    HYDRO-PM-EC Closed End Cap for HYDROPLUS Mini

    Sale

    HYDRO-PM-EC Closed End Cap for HYDROPLUS Mini

    Regular price $22.71 USD
    Regular price $32.44 USD Sale price $22.71 USD
    Unit price /  per 
    Sale
  • NDS-Dura-XX-604-TDSdrains deco cast iron brick grate HPDE channel NDS

    NDS® Dura Slope Kit with DS-604 Cast Iron Brick Grate | RAW

    NDS® Dura Slope Kit with DS-604 Cast Iron Brick Grate | RAW

    Regular price From $539.77 USD
    Regular price Sale price From $539.77 USD
    Unit price /  per 
  • 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-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 
  • DP0650-Catch Basin

    POLYCAST® DP0750 Inline Catch Basin w/DG0647R Slotted Stainless Grate Grate & HDPE Frame

    POLYCAST® DP0750 Inline Catch Basin w/DG0647R Slotted Stainless Grate Grate & HDPE Frame

    Regular price $740.85 USD
    Regular price Sale price $740.85 USD
    Unit price /  per 
  • DP0650-XX-675H Polycast 600 with black HDPE Grate in transverse slotted pattern

    POLYCAST® DP0650 Inline Catch Basin w/DG0675 HDPE Transverse Slotted Grate

    POLYCAST® DP0650 Inline Catch Basin w/DG0675 HDPE Transverse Slotted Grate

    Regular price $389.87 USD
    Regular price Sale price $389.87 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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