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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
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      • All Channel Materials
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      • Dura Slope
      • FP1200
      • Mini Channel
      • Polycast 600/700
      • Slim Channel
      • SS600
      • ULMA U100K(X)
      • All Drainage Systems
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  • RG-151224-AB

    RG-151224-AB Heavy Duty Ductile Iron Slotted 12″ x 24″ x 1.5″ Grate | TDS

    RG-151224-AB Heavy Duty Ductile Iron Slotted 12″ x 24″ x 1.5″ Grate | TDS

    Regular price $217.44 USD
    Regular price Sale price $217.44 USD
    Unit price /  per 
  • Zurn P4-BZ Decorative Slotted Cast Bronze 4" x 20" Grate - Class A

    Zurn P4-BZ Decorative Slotted Cast Bronze 4" x 20" Grate - Class A

    Zurn P4-BZ Decorative Slotted Cast Bronze 4" x 20" Grate - Class A

    Regular price $748.80 USD
    Regular price Sale price $748.80 USD
    Unit price /  per 
  • ULMA 436 Wedge Wire Stainless Steel 122mm x 1M Grate ADA Compliant - Class B

    ULMA 436 Wedge Wire Stainless Steel 122mm x 1M Grate ADA Compliant - Class B

    ULMA 436 Wedge Wire Stainless Steel 122mm x 1M Grate ADA Compliant - Class B

    Regular price $476.93 USD
    Regular price Sale price $476.93 USD
    Unit price /  per 
  • Mini-550-bottom-outlet-TDSdrains

    NDS 550 Mini Channel 3" x 36" with Bottom Outlet – GRAY

    NDS 550 Mini Channel 3" x 36" with Bottom Outlet – GRAY

    Regular price $59.72 USD
    Regular price Sale price $59.72 USD
    Unit price /  per 
  • ULMA HYDRO PLUS with ULMA 495 ADA Heel proof Polypropylene Grey Grate-Class A

    ULMA HYDROPLUS with 495 / PNH100KCAM- Polypropylene ADA/HP Class A Gray Grate

    ULMA HYDROPLUS with 495 / PNH100KCAM- Polypropylene ADA/HP Class A Gray Grate

    Regular price From $178.94 USD
    Regular price Sale price From $178.94 USD
    Unit price /  per 
  • ULMA 450 IN100KCA-Stainless Steel Slotted Grate

    ULMA 451 / IN100KCAM Stainless Steel Slotted Grate 0.5M Class A

    ULMA 451 / IN100KCAM Stainless Steel Slotted Grate 0.5M Class A

    Regular price $81.50 USD
    Regular price Sale price $81.50 USD
    Unit price /  per 
  • MMS-SS-SLOT MAX Mini kit with sand channel and stainless steel grate

    3" Sand MAX Mini Kit w/Slotted Heelproof 316L Stainless Steel Grate

    3" Sand MAX Mini Kit w/Slotted Heelproof 316L Stainless Steel Grate

    Regular price From $684.98 USD
    Regular price Sale price From $684.98 USD
    Unit price /  per 
  • Zurn Z884 with Cast Iron Slotted Grate

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

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

    Regular price From $377.94 USD
    Regular price Sale price From $377.94 USD
    Unit price /  per 
  • PCK5-DG0621 Slot

    POLYCAST 500 Kit w/ DG0621 Galvanized Slotted Grate | Class A

    POLYCAST 500 Kit w/ DG0621 Galvanized Slotted Grate | Class A

    Regular price From $301.88 USD
    Regular price Sale price From $301.88 USD
    Unit price /  per 
  • IA-RAIN-0520-HP

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

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

    Regular price $133.85 USD
    Regular price Sale price $133.85 USD
    Unit price /  per 
  • ULMA HYDROPLUS with Iron Age Que BoOF Finish Cast Iron Grate

    ULMA HYDROPLUS with Iron Age IA-QUE-0520-HP BoOF Que Heel Proof Cast Iron Grate Class B

    ULMA HYDROPLUS with Iron Age IA-QUE-0520-HP BoOF Que Heel Proof Cast Iron Grate Class B

    Regular price From $563.02 USD
    Regular price Sale price From $563.02 USD
    Unit price /  per 
  • 837_8inx20in_PedestrianTraffic-2671655952-O-L

    NDS 837 Class B Slotted Traffic Polyolefin Grate 8" x 20" (Nominal Dimensions)

    NDS 837 Class B Slotted Traffic Polyolefin Grate 8" x 20" (Nominal Dimensions)

    Regular price $113.12 USD
    Regular price Sale price $113.12 USD
    Unit price /  per 
  • NDS888-ductile-iron-slot-grate

    NDS 888 Class C Slotted Ductile Iron Grate 8" x 20" (Nominal Dimensions)

    NDS 888 Class C Slotted Ductile Iron Grate 8" x 20" (Nominal Dimensions)

    Regular price $245.10 USD
    Regular price Sale price $245.10 USD
    Unit price /  per 
  • POLY700-PE-655R

    POLYCAST®700 Vinyl Ester Kit w/DG0655R Reinforced Wedge Wire Stainless Grate-HDPE Frame

    POLYCAST®700 Vinyl Ester Kit w/DG0655R Reinforced Wedge Wire Stainless Grate-HDPE Frame

    Regular price From $930.56 USD
    Regular price Sale price From $930.56 USD
    Unit price /  per 
  • DG0641D POLYCAST ductile iron slotted grate Class D

    POLYCAST DG0641D Class D Slotted Ductile Iron Grate 6" x 24" (Nominal)

    POLYCAST DG0641D Class D Slotted Ductile Iron Grate 6" x 24" (Nominal)

    Regular price $55.32 USD
    Regular price Sale price $55.32 USD
    Unit price /  per 
  • NDS823 proseries 5 cast iron heavy duty grate

    NDS 823 Class C Slotted Ductile Iron 5" x 20" Grate

    NDS 823 Class C Slotted Ductile Iron 5" x 20" Grate

    Regular price $192.32 USD
    Regular price Sale price $192.32 USD
    Unit price /  per 
  • ULMA U100KX Kit

    ULMA U100KX Drain Channel with Stainless Steel Edging w/o Grate

    ULMA U100KX Drain Channel with Stainless Steel Edging w/o Grate

    Regular price From $135.10 USD
    Regular price Sale price From $135.10 USD
    Unit price /  per 
  • Zurn P6-RFSC

    Zurn P6-FG Class A Slotted Heel-Proof Galvanized Steel 6" x 40" Grate

    Zurn P6-FG Class A Slotted Heel-Proof Galvanized Steel 6" x 40" Grate

    Regular price $161.60 USD
    Regular price Sale price $161.60 USD
    Unit price /  per 
  • POLYCAST 600 with DG0670

    POLYCAST® 600 Vinyl Ester Series Kit with DG0670 Slotted HDPE Grate

    POLYCAST® 600 Vinyl Ester Series Kit with DG0670 Slotted HDPE Grate

    Regular price From $307.48 USD
    Regular price Sale price From $307.48 USD
    Unit price /  per 
  • ZURN Z884 Drainage Kit w/ P4-FS Slotted Stainless Steel Grates - Bottom Outlet

    ZURN Z884 Drainage Kit w/ P4-FS Slotted Stainless Steel Grates - Bottom Outlet

    ZURN Z884 Drainage Kit w/ P4-FS Slotted Stainless Steel Grates - Bottom Outlet

    Regular price From $548.43 USD
    Regular price Sale price From $548.43 USD
    Unit price /  per 
  • New Image Coming Soon

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

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

    Regular price From $548.67 USD
    Regular price Sale price From $548.67 USD
    Unit price /  per 
  • FG1275 Ductile Iron ADA Grate

    TDS DG1275 Class E Transverse Slotted Ductile Iron 14" x 24" x 1.5" Grate

    TDS DG1275 Class E Transverse Slotted Ductile Iron 14" x 24" x 1.5" Grate

    Regular price $344.41 USD
    Regular price Sale price $344.41 USD
    Unit price /  per 
  • Polycast-500-channel-DK low profile polymer concrete channel shallow

    POLYCAST 500 Series Channel

    POLYCAST 500 Series Channel

    Regular price $173.27 USD
    Regular price Sale price $173.27 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 
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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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