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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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      • 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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    • 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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  • U100KM-FNHX100KCCM-1 cast iron heel-proof grate polymer concrete galv edge ULMA channel

    ULMA U100K Drainage Kit with 480 Ductile Iron Heel-Proof Grate

    Sale

    ULMA U100K Drainage Kit with 480 Ductile Iron Heel-Proof Grate

    Regular price From $332.15 USD
    Regular price $417.06 USD Sale price From $332.15 USD
    Unit price /  per 
    Sale
  • POLY600-xx-657-TDSdrains stainless steel perforated grate polymer concrete channel Polycast

    POLYCAST 600 Series Kit w/ DG0657 Perforated Stainless Steel Grate

    POLYCAST 600 Series Kit w/ DG0657 Perforated Stainless Steel Grate

    Regular price From $309.86 USD
    Regular price Sale price From $309.86 USD
    Unit price /  per 
  • POLY600-XX-647R

    POLYCAST 600 Series Kit with DG0647R Reinforced Slotted Stainless Grate

    POLYCAST 600 Series Kit with DG0647R Reinforced Slotted Stainless Grate

    Regular price From $525.53 USD
    Regular price Sale price From $525.53 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 
  • New Image Coming Soon

    ULMA M100KX w/465 Ductile Iron Slotted Grate Class C

    Sale

    ULMA M100KX w/465 Ductile Iron Slotted Grate Class C

    Regular price From $300.85 USD
    Regular price $376.80 USD Sale price From $300.85 USD
    Unit price /  per 
    Sale
  • POLYCAST 500 with DG0631 transverse slotted grate

    POLYCAST 500 Kit w/ DG0631 Stainless Steel Transverse Slotted Grate | Class A

    POLYCAST 500 Kit w/ DG0631 Stainless Steel Transverse Slotted Grate | Class A

    Regular price From $399.51 USD
    Regular price Sale price From $399.51 USD
    Unit price /  per 
  • 5inch-cast-iron-que-hp

    Iron Age IA-QUE-0520-HP Class B Heel-Proof Cast Iron 122mm x 500mm Grate - RAW

    Iron Age IA-QUE-0520-HP Class B Heel-Proof Cast Iron 122mm x 500mm Grate - RAW

    Regular price $174.46 USD
    Regular price Sale price $174.46 USD
    Unit price /  per 
  • U100KM-GreekKey Iron Age Cast Iron Deco Raw grate polymer concrete galv edge ULMA channel

    ULMA U100K Drainage Kit with Iron Age Greek Key Grate | Natual

    Sale

    ULMA U100K Drainage Kit with Iron Age Greek Key Grate | Natual

    Regular price From $597.86 USD
    Regular price $658.98 USD Sale price From $597.86 USD
    Unit price /  per 
    Sale
  • MV+200K-658 ULMA MULTIV with Glavanized Edge and 658 grate

    ULMA MV+200K w/ 658 HP Ductile Iron 9X20 Slotted Grate Class C

    Sale

    ULMA MV+200K w/ 658 HP Ductile Iron 9X20 Slotted Grate Class C

    Regular price From $189.92 USD
    Regular price $244.18 USD Sale price From $189.92 USD
    Unit price /  per 
    Sale
  • ZF806-DGC ductile iron grate and fiber reinforced polymer trench drain

    Zurn ZF806 Flo-Thru® Drain with P6-DGC Ductile Iron Grate - HD Z Frame

    Zurn ZF806 Flo-Thru® Drain with P6-DGC Ductile Iron Grate - HD Z Frame

    Regular price From $2,239.80 USD
    Regular price Sale price From $2,239.80 USD
    Unit price /  per 
  • PCK5-DG0644SP-SE POLCYAST 500 with Steel Edge and DG0644SP Fiberglass Grates

    POLYCAST 500 Series Kit w/ FG0644SP Vinyl-Ester Bar 3/8" Spacing Grate and Stainless Edge

    POLYCAST 500 Series Kit w/ FG0644SP Vinyl-Ester Bar 3/8" Spacing Grate and Stainless Edge

    Regular price From $635.18 USD
    Regular price Sale price From $635.18 USD
    Unit price /  per 
  • POLY500-PE-675HD-TDSdrains frame cast iron transverse slotted ADA grate POLYCAST polymer concrete channel

    POLYCAST 500 Series Kit w/ DG0675HD Transverse Slot Ductile Iron Grate ADA - HDPE Frame

    POLYCAST 500 Series Kit w/ DG0675HD Transverse Slot Ductile Iron Grate ADA - HDPE Frame

    Regular price From $418.74 USD
    Regular price Sale price From $418.74 USD
    Unit price /  per 
  • New Image Coming Soon

    Zurn ZF806 Flo-Thru® Drain with P6-HPP Black HDPE Grate - HD Z Frame

    Zurn ZF806 Flo-Thru® Drain with P6-HPP Black HDPE Grate - HD Z Frame

    Regular price From $2,383.80 USD
    Regular price Sale price From $2,383.80 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 
  • Slotted 609 grates in Dura Slope

    NDS® Dura Slope Kit with DS-609 Deco Slot Grate | RAW

    NDS® Dura Slope Kit with DS-609 Deco Slot Grate | RAW

    Regular price From $539.77 USD
    Regular price Sale price From $539.77 USD
    Unit price /  per 
  • Bottom Outlet 3000 Series

    TDS DA3000S Bottom Outlet | 3000 Series

    TDS DA3000S Bottom Outlet | 3000 Series

    Regular price $63.00 USD
    Regular price Sale price $63.00 USD
    Unit price /  per 
  • Polycast-DG0442-galv-steel-grate-4ft-TDSdrains

    POLYCAST DG0441 Class A Slotted Galvanized 5" x 24" Grate

    POLYCAST DG0441 Class A Slotted Galvanized 5" x 24" Grate

    Regular price $89.26 USD
    Regular price Sale price $89.26 USD
    Unit price /  per 
  • ULMA D100 w/Bronze Age™ LUNA Ductile Iron Grate - RAW

    ULMA D100 w/Bronze Age™ LUNA Ductile Iron Grate - RAW

    Sale

    ULMA D100 w/Bronze Age™ LUNA Ductile Iron Grate - RAW

    Regular price From $414.64 USD
    Regular price $421.92 USD Sale price From $414.64 USD
    Unit price /  per 
    Sale
  • 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 
  • 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 
  • POLYCAST 500 Series Kit with DG0646 Perforated Galvanized Grate

    POLYCAST 500 Series Kit with DG0646 Perforated Galvanized Grate

    POLYCAST 500 Series Kit with DG0646 Perforated Galvanized Grate

    Regular price From $292.07 USD
    Regular price Sale price From $292.07 USD
    Unit price /  per 
  • 488_Vinylester FRP 0.6 in center 1M Grate

    TDS 488 Vinyl-Ester Fiberglass Bar 122mm x 1M Bar Grate - 0.6" on center - Class C

    Sale

    TDS 488 Vinyl-Ester Fiberglass Bar 122mm x 1M Bar Grate - 0.6" on center - Class C

    Regular price $194.32 USD
    Regular price $249.84 USD Sale price $194.32 USD
    Unit price /  per 
    Sale
  • ULMA M100V w/Bronze Age™ FERN Ductile Iron Heel-Proof Grate - RAW

    ULMA M100V w/Bronze Age™ FERN Ductile Iron Heel-Proof Grate - RAW

    Sale

    ULMA M100V w/Bronze Age™ FERN Ductile Iron Heel-Proof Grate - RAW

    Regular price From $310.06 USD
    Regular price $338.65 USD Sale price From $310.06 USD
    Unit price /  per 
    Sale
  • POLY500-PE-692-TDSdrains HPDE frame cast iron patriot grate shallow POLYCAST polymer concrete channel

    POLYCAST 500 Series Kit with DG0692 Patriot Ductile Iron Grate and HDPE Frame

    POLYCAST 500 Series Kit with DG0692 Patriot Ductile Iron Grate and HDPE Frame

    Regular price From $501.15 USD
    Regular price Sale price From $501.15 USD
    Unit price /  per 
  • ULMA drain channel with stainless steel edge and polypropylene grate

    ULMA U100K Kit with 495 / PNH100KCAM-GRIS Polypropylene ADA Heel Proof Grate – GRAY

    Sale

    ULMA U100K Kit with 495 / PNH100KCAM-GRIS Polypropylene ADA Heel Proof Grate – GRAY

    Regular price From $304.36 USD
    Regular price $381.33 USD Sale price From $304.36 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 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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