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      • TDS
      • NDS
      • POLYCAST®
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      • 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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      • All Load Classes
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      • TDS
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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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  • POLY700-PE-647R

    POLYCAST® 700 Vinyl Ester Series Kit w/DG0647R Reinforced Slotted Stainless Grate & HDPE Frame

    POLYCAST® 700 Vinyl Ester Series Kit w/DG0647R Reinforced Slotted Stainless Grate & HDPE Frame

    Regular price From $1,036.52 USD
    Regular price Sale price From $1,036.52 USD
    Unit price /  per 
  • New Image Coming Soon

    POLYCAST® DP0653SB 24" Catch Basin w/DG0659 Slotted Fiberglass Grate

    POLYCAST® DP0653SB 24" Catch Basin w/DG0659 Slotted Fiberglass Grate

    Regular price $1,460.97 USD
    Regular price Sale price $1,460.97 USD
    Unit price /  per 
  • Iron Age IA-LOC-CB24 / LN24-24|14 Class B Locust Cast Iron 24" x 24" Grate - Natural

    Iron Age IA-LOC-CB24 / LN24-24|14 Class B Locust Cast Iron 24" x 24" Grate - Natural

    Iron Age IA-LOC-CB24 / LN24-24|14 Class B Locust Cast Iron 24" x 24" Grate - Natural

    Regular price $792.22 USD
    Regular price Sale price $792.22 USD
    Unit price /  per 
  • M100K-TDS0461 Class E grate polymer concrete channel

    ULMA M100K Kit w/ TDS 461D Slotted Ductile Iron Grate & Galvanized Edge

    Sale

    ULMA M100K Kit w/ TDS 461D Slotted Ductile Iron Grate & Galvanized Edge

    Regular price From $254.69 USD
    Regular price $317.46 USD Sale price From $254.69 USD
    Unit price /  per 
    Sale
  • ULMA Hydro Mini Plus H80 with IA-IA-JOE-0520-HP-BF Iron Age Regular Joe Heel Proof BoOF Grate Class B

    ULMA HYDROPLUS Mini w/ Iron Age Regular Joe BoOF Heel Proof Cast Iron Grate | Class B

    Sale

    ULMA HYDROPLUS Mini w/ Iron Age Regular Joe BoOF Heel Proof Cast Iron Grate | Class B

    Regular price From $519.86 USD
    Regular price $528.34 USD Sale price From $519.86 USD
    Unit price /  per 
    Sale
  • HYDROPLUS with Iron Age Minnione BoOF Cast Iron

    ULMA HYDROPLUS with Iron Age IA-MIN-0520 Minnione BoOF Cast Iron Grate Class B

    Sale

    ULMA HYDROPLUS with Iron Age IA-MIN-0520 Minnione BoOF Cast Iron Grate Class B

    Regular price From $559.11 USD
    Regular price $583.04 USD Sale price From $559.11 USD
    Unit price /  per 
    Sale
  • SS600 Stainless Steel Drain Kit w/ DG0632 Perforated 304 Stainless Steel Grate | Class A

    SS600 Stainless Steel Drain Kit w/ DG0632 Perforated 304 Stainless Steel Grate | Class A

    SS600 Stainless Steel Drain Kit w/ DG0632 Perforated 304 Stainless Steel Grate | Class A

    Regular price From $1,463.89 USD
    Regular price Sale price From $1,463.89 USD
    Unit price /  per 
  • Zurn_Z884_HDPE_Plastic_Grate_4_x_20-Dark_Gray Z884 drain kit with Dark gray slotted grate

    ZURN Z884 Drainage Kit w/ P4-HPP-DK-GREY HDPE HDPE Grate - Bottom Outlet

    ZURN Z884 Drainage Kit w/ P4-HPP-DK-GREY HDPE HDPE Grate - Bottom Outlet

    Regular price From $349.18 USD
    Regular price Sale price From $349.18 USD
    Unit price /  per 
  • TP0650S-DG0647R-SE Catch Basin w/ Reinforced Stainless Steel Slotted Grate with SS Edging

    TV0650S (Shallow) VE Catch Basin Kit w/ DG0647RH & Stainless Edge for POLYCAST®

    TV0650S (Shallow) VE Catch Basin Kit w/ DG0647RH & Stainless Edge for POLYCAST®

    Regular price $834.73 USD
    Regular price Sale price $834.73 USD
    Unit price /  per 
  • HYDRO MINI PLUS with Iron Age Mission Bay Heel Proof BoOF Grate IA-BAY00520-HP-BF

    ULMA HYDROPLUS Mini w/ Iron Age IA-BAY-0520-HP-BF Mission Bay HP BoOF Cast Iron Grate | Class B

    Sale

    ULMA HYDROPLUS Mini w/ Iron Age IA-BAY-0520-HP-BF Mission Bay HP BoOF Cast Iron Grate | Class B

    Regular price From $519.86 USD
    Regular price $528.34 USD Sale price From $519.86 USD
    Unit price /  per 
    Sale
  • ULMA HYDRO MINI PLUS with IA-BAY-0520-HP Raw

    ULMA HYDROPLUS Mini IA-BAY-0520-HP Iron Age Mission Bay HP Raw Cast Iron Grate | Class B

    Sale

    ULMA HYDROPLUS Mini IA-BAY-0520-HP Iron Age Mission Bay HP Raw Cast Iron Grate | Class B

    Regular price From $402.60 USD
    Regular price $411.08 USD Sale price From $402.60 USD
    Unit price /  per 
    Sale
  • HYDROPLUS with Iron Age Minnione Raw Cast Iron

    ULMA HYDROPLUS w/ CLass B Iron Age MA5-20I21 / IA-MIN-0520 Minnione Raw Cast Iron Grate

    Sale

    ULMA HYDROPLUS w/ CLass B Iron Age MA5-20I21 / IA-MIN-0520 Minnione Raw Cast Iron Grate

    Regular price From $441.85 USD
    Regular price $465.78 USD Sale price From $441.85 USD
    Unit price /  per 
    Sale
  • ULMA Hydro Mini Plus with 462G Gatic Grate Class D

    ULMA HYDROPLUS Mini with Ductile Iron Slotted Grate (462G)

    Sale

    ULMA HYDROPLUS Mini with Ductile Iron Slotted Grate (462G)

    Regular price From $119.94 USD
    Regular price $147.35 USD Sale price From $119.94 USD
    Unit price /  per 
    Sale
  • 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 
  • nds817-sand-grate Pro Series 5

    NDS 817 Class B ADA Compliant Light Traffic HDPE 5" x 20" Grate - SAND

    NDS 817 Class B ADA Compliant Light Traffic HDPE 5" x 20" Grate - SAND

    Regular price $65.05 USD
    Regular price Sale price $65.05 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 $338.99 USD
    Regular price Sale price From $338.99 USD
    Unit price /  per 
  • Polycast 600 with Vinyl Ester Polymer channels and DG0655R Reinforced Wedge wire grates

    POLYCAST® 600 Vinyl Ester Series Kit with DG0655R Reinforced Stainless Wedge Wire Grate

    POLYCAST® 600 Vinyl Ester Series Kit with DG0655R Reinforced Stainless Wedge Wire Grate

    Regular price From $609.79 USD
    Regular price Sale price From $609.79 USD
    Unit price /  per 
  • NDS-speeD400-251-TDSdrains

    NDS Spee-D® Channel w/ 251 Slotted HDPE 4"x24" Brick Red Grate

    NDS Spee-D® Channel w/ 251 Slotted HDPE 4"x24" Brick Red Grate

    Regular price From $131.69 USD
    Regular price Sale price From $131.69 USD
    Unit price /  per 
  • POLY600-SS-641D-TDSdrains stainless steel edge slotted cast iron grate polymer concrete channel Polycast

    POLYCAST 600 Series Kit with DG0641D Slotted Ductile Iron Grate and Galvanized Edging

    POLYCAST 600 Series Kit with DG0641D Slotted Ductile Iron Grate and Galvanized Edging

    Regular price From $237.04 USD
    Regular price Sale price From $237.04 USD
    Unit price /  per 
  • NDS catch basin filter - side view

    NDS 900FF Filter for NDS 900 Series Catch Basin

    NDS 900FF Filter for NDS 900 Series Catch Basin

    Regular price $60.43 USD
    Regular price Sale price $60.43 USD
    Unit price /  per 
  • NDS Pro Series 5 Slotted Brick Red Grate NDS 818

    NDS 818 Class B ADA Compliant Light Traffic HDPE 5" x 20" Grate - BRICK RED

    NDS 818 Class B ADA Compliant Light Traffic HDPE 5" x 20" Grate - BRICK RED

    Regular price $65.05 USD
    Regular price Sale price $65.05 USD
    Unit price /  per 
  • ULMA U100KX with Stainless Steel Edge and Stainless Steel Perforated Grate

    ULMA U100KX w/ Stainless Steel Perforated Grate (440)

    Sale

    ULMA U100KX w/ Stainless Steel Perforated Grate (440)

    Regular price From $477.69 USD
    Regular price $604.17 USD Sale price From $477.69 USD
    Unit price /  per 
    Sale
  • Iron Age Janis 24x24 catch basin cast iron grate

    Iron Age IA-JANIS-CB24 / JN24-24|14 Class B Janis Cast Iron 24" x 24" Grate - RAW

    Iron Age IA-JANIS-CB24 / JN24-24|14 Class B Janis Cast Iron 24" x 24" Grate - RAW

    Regular price $792.22 USD
    Regular price Sale price $792.22 USD
    Unit price /  per 
  • ULMA Hydro Mini Plus H80 with IA-ARGO-0520-HP Iron Age Argo Heel proof Grate Class B

    ULMA HYDROPLUS Mini w/ Iron Age IA-ARGO-0520-HP Argo Heel Proof Raw Cast Iron Grate Class B

    Sale

    ULMA HYDROPLUS Mini w/ Iron Age IA-ARGO-0520-HP Argo Heel Proof Raw Cast Iron Grate Class B

    Regular price From $402.60 USD
    Regular price $411.08 USD Sale price From $402.60 USD
    Unit price /  per 
    Sale
  • Hydro Plus Mini with 432 Stainless Steel Mesh Grate Class B

    ULMA HYDROPLUS Mini with Mesh Stainless Steel Grate (432 / IEX100KCB) Class B

    Sale

    ULMA HYDROPLUS Mini with Mesh Stainless Steel Grate (432 / IEX100KCB) Class B

    Regular price From $411.52 USD
    Regular price $522.24 USD Sale price From $411.52 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 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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