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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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      • All Channel Materials
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      • TDS
      • Bronze Age
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      • Zurn
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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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  • POLYCAST 600 with DG0621 Galv Edging and SLOT grate

    POLYCAST® 600 Series Kit with DG0621 Galvanized Grate w/ Edging | Load Class A

    POLYCAST® 600 Series Kit with DG0621 Galvanized Grate w/ Edging | Load Class A

    Regular price From $317.59 USD
    Regular price Sale price From $317.59 USD
    Unit price /  per 
  • LPK12-IA-SUN-BF NDS Low Profile Catch Basin with Iron Age Sun grate in BoOF Cast Iron

    NDS 12″ Low Profile Catch Basin Kit with Iron Age Sun Grate | Baked on Oil Finish

    NDS 12″ Low Profile Catch Basin Kit with Iron Age Sun Grate | Baked on Oil Finish

    Regular price From $362.35 USD
    Regular price Sale price From $362.35 USD
    Unit price /  per 
  • POLY700-AA-692

    POLYCAST® 700 Kit w/ DG0692 Patriot Ductile Iron Grate & Ductile Frame

    POLYCAST® 700 Kit w/ DG0692 Patriot Ductile Iron Grate & Ductile Frame

    Regular price From $374.15 USD
    Regular price Sale price From $374.15 USD
    Unit price /  per 
  • NDS2411 NDS black plastic slotted grate for 24x24" catch basins

    NDS 2411 Class B Slotted HDPE 24" x 24" Grate - BLACK

    NDS 2411 Class B Slotted HDPE 24" x 24" Grate - BLACK

    Regular price $578.65 USD
    Regular price Sale price $578.65 USD
    Unit price /  per 
  • NDS1218GY botanical Grey catch basin grate

    NDS 1218GY Class B ADA Compliant Botanical HDPE 12" x 12" Grate - GRAY

    NDS 1218GY Class B ADA Compliant Botanical HDPE 12" x 12" Grate - GRAY

    Regular price $85.47 USD
    Regular price Sale price $85.47 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 $403.89 USD
    Regular price Sale price From $403.89 USD
    Unit price /  per 
  • POLYCAST®700 Series Kit w/ DG0655R Wedge Wire Grate & HDPE Frame | Load Class C

    POLYCAST®700 Series Kit w/ DG0655R Wedge Wire Grate & HDPE Frame | Load Class C

    POLYCAST®700 Series Kit w/ DG0655R Wedge Wire Grate & HDPE Frame | Load Class C

    Regular price From $558.21 USD
    Regular price Sale price From $558.21 USD
    Unit price /  per 
  • NDS-2outlet-catch-basin-4in-outlets-grey-slotted-grate-TDSdrains (1)

    NDS 9" Catch Basin Kit with NDS Slotted Grate | Gray

    NDS 9" Catch Basin Kit with NDS Slotted Grate | Gray

    Regular price From $108.44 USD
    Regular price Sale price From $108.44 USD
    Unit price /  per 
  • POLYCAST 400 w/DG0442

    POLYCAST®400 Series Kit w/DG0442 5"x48" Slotted Galvanized Grate

    POLYCAST®400 Series Kit w/DG0442 5"x48" Slotted Galvanized Grate

    Regular price From $265.11 USD
    Regular price Sale price From $265.11 USD
    Unit price /  per 
  • LPK12-IA-OBLIO-HP NDS Low Profile Catch Basin with Iron Age Oblio Raw Grate 12x12"

    NDS 12" Low Profile Catch Basin Kit with Iron Age Oblio Grate | Natural

    NDS 12" Low Profile Catch Basin Kit with Iron Age Oblio Grate | Natural

    Regular price From $286.56 USD
    Regular price Sale price From $286.56 USD
    Unit price /  per 
  • POLYCAST 600 Series Kit with DG0657R Perforated Stainless Grate and Edging | Load Class C

    POLYCAST 600 Series Kit with DG0657R Perforated Stainless Grate and Edging | Load Class C

    POLYCAST 600 Series Kit with DG0657R Perforated Stainless Grate and Edging | Load Class C

    Regular price From $537.66 USD
    Regular price Sale price From $537.66 USD
    Unit price /  per 
  • NDS1218 botanical black catch basin grate

    NDS 1218 Class B ADA Compliant Botanical HDPE 12" x 12" Grate - Black

    NDS 1218 Class B ADA Compliant Botanical HDPE 12" x 12" Grate - Black

    Regular price $90.92 USD
    Regular price Sale price $90.92 USD
    Unit price /  per 
  • 9x9-catch-basin-kit-di-grate-1024x989

    NDS 9" Catch Basin Kit with NDS Slotted Grate | Ductile Iron

    NDS 9" Catch Basin Kit with NDS Slotted Grate | Ductile Iron

    Regular price From $220.29 USD
    Regular price Sale price From $220.29 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 $418.41 USD
    Regular price Sale price From $418.41 USD
    Unit price /  per 
  • PCK6-DG0632 POLYCAST 600 with DG0632 Foam Perforated Stainless Steel Grate

    POLYCAST 600 Series Kit w/ DG0632 Foam Perforated Class A Stainless Steel Grate

    POLYCAST 600 Series Kit w/ DG0632 Foam Perforated Class A Stainless Steel Grate

    Regular price From $300.76 USD
    Regular price Sale price From $300.76 USD
    Unit price /  per 
  • NDS-2410-03-DK 10inch 12inch universal outlet adapter

    NDS 2410 Universal Outlet Adapter 10"-12"

    NDS 2410 Universal Outlet Adapter 10"-12"

    Regular price $64.16 USD
    Regular price Sale price $64.16 USD
    Unit price /  per 
  • POLYCAST 600 with DG0646

    POLYCAST® 600 Series Kit w/ DG0646 Perforated Galvanized Steel Grate

    POLYCAST® 600 Series Kit w/ DG0646 Perforated Galvanized Steel Grate

    Regular price From $238.11 USD
    Regular price Sale price From $238.11 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 
  • 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 $568.80 USD
    Regular price Sale price From $568.80 USD
    Unit price /  per 
  • POLYCAST 600 with Galvanized DG0620 Cathedral Grate

    POLYCAST® 600 Series Kit w/ DG0620 Cathedral Galvanized Steel Grate | Load Class A

    POLYCAST® 600 Series Kit w/ DG0620 Cathedral Galvanized Steel Grate | Load Class A

    Regular price From $299.96 USD
    Regular price Sale price From $299.96 USD
    Unit price /  per 
  • POLYCAST 600 with DG0631 SS Edge and SLOT grate

    POLYCAST 600 Series Kit w/ DG0631 Slotted Stainless Steel Grate & Edging | Load Class A

    POLYCAST 600 Series Kit w/ DG0631 Slotted Stainless Steel Grate & Edging | Load Class A

    Regular price From $396.01 USD
    Regular price Sale price From $396.01 USD
    Unit price /  per 
  • NDS900-4-Catch-Basin (1)

    NDS 9" Catch Basin Kit with NDS Slotted Grate | Black

    NDS 9" Catch Basin Kit with NDS Slotted Grate | Black

    Regular price From $99.57 USD
    Regular price Sale price From $99.57 USD
    Unit price /  per 
  • NDS® 1266 Universal Locking Outlet - 6"

    NDS® 1266 Universal Locking Outlet - 6"

    NDS® 1266 Universal Locking Outlet - 6"

    Regular price $12.10 USD
    Regular price Sale price $12.10 USD
    Unit price /  per 
  • NDS900-4-Catch-Basin (1)

    NDS 9" Catch Basin Kit with NDS Slotted Grate | Sand

    NDS 9" Catch Basin Kit with NDS Slotted Grate | Sand

    Regular price From $105.27 USD
    Regular price Sale price From $105.27 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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