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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
      • Polymer Concrete
      • Stainless Steel
      • 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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      • 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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  • NDS-speeD400-244-TDSdrains

    NDS Spee-D® Channel w/ 244 Slotted HDPE 4"x24" Sand Grate

    NDS Spee-D® Channel w/ 244 Slotted HDPE 4"x24" Sand Grate

    Regular price From $123.56 USD
    Regular price Sale price From $123.56 USD
    Unit price /  per 
  • DA0651TC Polycast debris basket

    POLYCAST DA0651TC Debris Basket Stainless Steel

    POLYCAST DA0651TC Debris Basket Stainless Steel

    Regular price $746.17 USD
    Regular price Sale price $746.17 USD
    Unit price /  per 
  • DA0651TA POLYCAST Debris Basket - Plastic - Wide

    POLYCAST DA0651TA Debris Basket HDPE

    POLYCAST DA0651TA Debris Basket HDPE

    Regular price $587.85 USD
    Regular price Sale price $587.85 USD
    Unit price /  per 
  • NDS931

    NDS 931 9" Deep Housing Spigot Adaptor

    NDS 931 9" Deep Housing Spigot Adaptor

    Regular price $54.17 USD
    Regular price Sale price $54.17 USD
    Unit price /  per 
  • NDS-speeD400-240-TDSdrains

    NDS Spee-D® Channel w/ 240 Slotted HDPE 4"x24" White Grate

    NDS Spee-D® Channel w/ 240 Slotted HDPE 4"x24" White Grate

    Regular price From $128.70 USD
    Regular price Sale price From $128.70 USD
    Unit price /  per 
  • FG-MICRO-CB09 fiberglass catch basin 9 inch fiberglass grate

    FG-MICRO-CB09 Class A ADA Compliant 9" x 9" Grate - Dark Gray

    FG-MICRO-CB09 Class A ADA Compliant 9" x 9" Grate - Dark Gray

    Regular price $67.51 USD
    Regular price Sale price $67.51 USD
    Unit price /  per 
  • NDS-243-TDSdrains

    NDS 243 Class B ADA Compliant Slotted HDPE 4" x 24" Grate - BLACK

    NDS 243 Class B ADA Compliant Slotted HDPE 4" x 24" Grate - BLACK

    Regular price $64.06 USD
    Regular price Sale price $64.06 USD
    Unit price /  per 
  • NDS 991 Green HDPE 9" Atrium Grate

    NDS 991 Atrium HDPE 9" X 9" Grate - GREEN

    NDS 991 Atrium HDPE 9" X 9" Grate - GREEN

    Regular price $101.06 USD
    Regular price Sale price $101.06 USD
    Unit price /  per 
  • NDS242-green-slotted-grate Spee-D channel

    NDS 242 Class B ADA Compliant Slotted HDPE 4" x 24" Grate - GREEN

    NDS 242 Class B ADA Compliant Slotted HDPE 4" x 24" Grate - GREEN

    Regular price $64.06 USD
    Regular price Sale price $64.06 USD
    Unit price /  per 
  • NDS1280-atrium-grate-green-catch-basin-nds

    NDS 1280 Atrium HDPE 12" X 12" Grate - GREEN

    NDS 1280 Atrium HDPE 12" X 12" Grate - GREEN

    Regular price $145.38 USD
    Regular price Sale price $145.38 USD
    Unit price /  per 
  • NDS 981 Black HDPE 9" Atrium Grate

    NDS 981 Atrium HDPE 9" X 9" Grate - BLACK

    NDS 981 Atrium HDPE 9" X 9" Grate - BLACK

    Regular price $101.06 USD
    Regular price Sale price $101.06 USD
    Unit price /  per 
  • NDS 1222 12"x12" low profile catch basin that fits 8" corrugated pipe

    NDS 1222 Low Profile Adapter 12" x 12" for 8" Corrugated Pipe

    NDS 1222 Low Profile Adapter 12" x 12" for 8" Corrugated Pipe

    Regular price $108.80 USD
    Regular price Sale price $108.80 USD
    Unit price /  per 
  • Spee-D Channel w/254 Gal grate

    NDS Spee-D® Channel w/ 254 Galvanized 4"x24" Slotted Grate

    NDS Spee-D® Channel w/ 254 Galvanized 4"x24" Slotted Grate

    Regular price From $146.92 USD
    Regular price Sale price From $146.92 USD
    Unit price /  per 
  • NDS 1245 3" and 4" Offset Universal Outlet

    NDS 1245 Universal Offset Adapter 3"-4" Outlet

    NDS 1245 Universal Offset Adapter 3"-4" Outlet

    Regular price $17.48 USD
    Regular price Sale price $17.48 USD
    Unit price /  per 
  • FWAS24WH NDS Flo-Well System Top Inlet

    NDS FWAS24WH Flo-Well Kit

    NDS FWAS24WH Flo-Well Kit

    Regular price $362.26 USD
    Regular price Sale price $362.26 USD
    Unit price /  per 
  • DS-609-Deco-Slotted-CI-grate dura slope NDS cast iron grate

    NDS DS-609 Class C Slotted Ductile Iron 6" x 24" Grate - RAW

    NDS DS-609 Class C Slotted Ductile Iron 6" x 24" Grate - RAW

    Regular price $211.80 USD
    Regular price Sale price $211.80 USD
    Unit price /  per 
  • NDS1290 Black Atrium HDPE Catch basin Grate

    NDS 1290 Atrium HDPE 12" X 12" Grate - BLACK

    NDS 1290 Atrium HDPE 12" X 12" Grate - BLACK

    Regular price $145.38 USD
    Regular price Sale price $145.38 USD
    Unit price /  per 
  • FG-MESH-CB18 fiberglass catch basin 18 inch grate

    FG-MESH-CB18 Class A Fiberglass 18" x 18" x 1" Catch Basin Grate - Dark Grey

    FG-MESH-CB18 Class A Fiberglass 18" x 18" x 1" Catch Basin Grate - Dark Grey

    Regular price $170.05 USD
    Regular price Sale price $170.05 USD
    Unit price /  per 
  • sand wave mini channel NDS

    NDS 555S Class B ADA Compliant Wave Polyolefin 3" x 36" Grate - SAND

    NDS 555S Class B ADA Compliant Wave Polyolefin 3" x 36" Grate - SAND

    Regular price $62.16 USD
    Regular price Sale price $62.16 USD
    Unit price /  per 
  • NGB1200 Catch Basin Sun Grate

    Iron Age IA-SUN-CB12 Class B Sun Cast Iron 12" x 12" Grate - Natural

    Iron Age IA-SUN-CB12 Class B Sun Cast Iron 12" x 12" Grate - Natural

    Regular price $221.65 USD
    Regular price Sale price $221.65 USD
    Unit price /  per 
  • POLY700-AA-641D-TDSdrains cast iron frame ductile iron slotted grate polymer concrete channel Polycast

    POLYCAST 700 Series Kit w/ DG0641D Slotted Ductile Iron Grate & Frame

    POLYCAST 700 Series Kit w/ DG0641D Slotted Ductile Iron Grate & Frame

    Regular price From $286.76 USD
    Regular price Sale price From $286.76 USD
    Unit price /  per 
  • NDS 1891 Atrium Grate in Green for 18 inch Catch basin

    NDS 1891 Atrium HDPE 18" X 18" Grate - GREEN

    NDS 1891 Atrium HDPE 18" X 18" Grate - GREEN

    Regular price $293.76 USD
    Regular price Sale price $293.76 USD
    Unit price /  per 
  • IA-OBLIO-CB12 Iron Age 12x12" Raw Cast Iron Oblio Grate

    Iron Age IA-OBLIO-CB12-HP Class B Heel-Proof Oblio Cast Iron 12" x 12" Grate - RAW

    Iron Age IA-OBLIO-CB12-HP Class B Heel-Proof Oblio Cast Iron 12" x 12" Grate - RAW

    Regular price $231.66 USD
    Regular price Sale price $231.66 USD
    Unit price /  per 
  • NDS 1881 Atrium Grate in Green for 18 inch Catch basin

    NDS 1881 Atrium HDPE 18" X 18" Grate - BLACK

    NDS 1881 Atrium HDPE 18" X 18" Grate - BLACK

    Regular price $293.76 USD
    Regular price Sale price $293.76 USD
    Unit price /  per 
  • NDS 244 -Box of 12 - Class B ADA Compliant Slotted HDPE 4" x 24" Grate - SAND

    NDS 244 -Box of 12 - Class B ADA Compliant Slotted HDPE 4" x 24" Grate - SAND

    NDS 244 -Box of 12 - Class B ADA Compliant Slotted HDPE 4" x 24" Grate - SAND

    Regular price $665.91 USD
    Regular price Sale price $665.91 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 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
  • 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

    $89.29
  • LD100X-2 Locking Device for ULMA Grates

    LD100X-2 Locking Device for ULMA Grates

    $14.40
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