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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
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      • All Drainage Systems
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      • All Drainage Systems
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  • NDS-Dura-XX-661-TDSdrains

    NDS® Dura Slope Kit with DS-661LG HDPE Slotted Grate | Light Gray

    NDS® Dura Slope Kit with DS-661LG HDPE Slotted Grate | Light Gray

    Regular price From $418.31 USD
    Regular price Sale price From $418.31 USD
    Unit price /  per 
  • FGK-I4015-WYE-12 fiberglass I-Bar grate with WYE frame

    12" Fiberglass Kit w/ I-Bar Grate and WYE Frame - Load Class C

    12" Fiberglass Kit w/ I-Bar Grate and WYE Frame - Load Class C

    Regular price From $615.33 USD
    Regular price Sale price From $615.33 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 
  • M100K- with 402 Galvanized Mesh Grate

    M100K W/ 1M Galv. Steel Mesh Grate (402)-ULMA

    M100K W/ 1M Galv. Steel Mesh Grate (402)-ULMA

    Regular price From $308.40 USD
    Regular price Sale price From $308.40 USD
    Unit price /  per 
  • MV+200K-661 ULMA MULTIV with galvanized edging with 661 grate

    ULMA MV+200K w/ 661 Ductile Iron 9X20 Slotted Grate Class E

    ULMA MV+200K w/ 661 Ductile Iron 9X20 Slotted Grate Class E

    Regular price From $260.81 USD
    Regular price Sale price From $260.81 USD
    Unit price /  per 
  • 8in Micro Mesh- WYE Frame

    8" Fiberglass Kit w/ Micro Mesh ADA Compliant Grate and WYE Frame - Load Class A

    8" Fiberglass Kit w/ Micro Mesh ADA Compliant Grate and WYE Frame - Load Class A

    Regular price From $454.63 USD
    Regular price Sale price From $454.63 USD
    Unit price /  per 
  • FGK-MESH-EZ-12 FRP grate with EZ frame

    12" Fiberglass Kit w/ Mesh Grate and EZ Frame - Load Class A

    12" Fiberglass Kit w/ Mesh Grate and EZ Frame - Load Class A

    Regular price From $464.65 USD
    Regular price Sale price From $464.65 USD
    Unit price /  per 
  • PCK5-DG0623 Square Deco

    POLYCAST 500 Kit w/ DG0623 Galvanized Square Deco Perforated Grate | Class A

    POLYCAST 500 Kit w/ DG0623 Galvanized Square Deco Perforated Grate | Class A

    Regular price From $344.33 USD
    Regular price Sale price From $344.33 USD
    Unit price /  per 
  • POLYCAST 500 Series Kit with DG0646 Perforated Galvanized Grate and Edging

    POLYCAST 500 Series Kit with DG0646 Perforated Galvanized Grate and Edging

    POLYCAST 500 Series Kit with DG0646 Perforated Galvanized Grate and Edging

    Regular price From $341.73 USD
    Regular price Sale price From $341.73 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

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

    Regular price From $396.78 USD
    Regular price Sale price From $396.78 USD
    Unit price /  per 
  • U100K with 402 Galvanized Steel Mesh Grate

    ULMA U100K Drainage Kit with ULMA 402 Mesh Grate | Galvanized

    ULMA U100K Drainage Kit with ULMA 402 Mesh Grate | Galvanized

    Regular price From $157.74 USD
    Regular price Sale price From $157.74 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 $354.09 USD
    Regular price Sale price From $354.09 USD
    Unit price /  per 
  • U100KM-GN100KCA Galv. Steel Slotted class A grate polymer concrete galv edge ULMA channel

    ULMA U100K Drainage Kit with ULMA 420 Slotted Grate | Galvanized Load Class A

    ULMA U100K Drainage Kit with ULMA 420 Slotted Grate | Galvanized Load Class A

    Regular price From $110.04 USD
    Regular price Sale price From $110.04 USD
    Unit price /  per 
  • ULMA M100KX stainless steel edged polymer concrete channel with 440 stainless perforated grate

    ULMA M100KX Kit with 440 / IP100KCA Stainless Steel Perforated Grate

    ULMA M100KX Kit with 440 / IP100KCA Stainless Steel Perforated Grate

    Regular price From $444.45 USD
    Regular price Sale price From $444.45 USD
    Unit price /  per 
  • NDS-Dura-XX-663-TDSdrains

    NDS® Dura Slope Kit with DS-663 HDPE Slotted Grate | Black Class B

    NDS® Dura Slope Kit with DS-663 HDPE Slotted Grate | Black Class B

    Regular price From $419.00 USD
    Regular price Sale price From $419.00 USD
    Unit price /  per 
  • U100KM-FNHX100KCCM-2 Cast Iron Slotted grate class c polymer concrete galv edge ULMA channel

    ULMA U100K Drainage Kit with ULMA Ductile Iron Slotted Grate

    ULMA U100K Drainage Kit with ULMA Ductile Iron Slotted Grate

    Regular price From $393.03 USD
    Regular price Sale price From $393.03 USD
    Unit price /  per 
  • U100KM-GP100KCA 402 galv. steel perforated grate class a polymer concrete galv edge ULMA channel

    ULMA U100K Drainage Kit with ULMA 410 Perforated Grate | Galvanized Class A

    ULMA U100K Drainage Kit with ULMA 410 Perforated Grate | Galvanized Class A

    Regular price From $333.68 USD
    Regular price Sale price From $333.68 USD
    Unit price /  per 
  • MV+200DI-678

    ULMA MV+200D w/ 678 HP Ductile Iron 9X20 Slotted Grate Class E

    ULMA MV+200D w/ 678 HP Ductile Iron 9X20 Slotted Grate Class E

    Regular price From $275.16 USD
    Regular price Sale price From $275.16 USD
    Unit price /  per 
  • ULMA M100KX stainless steel edged polymer concrete channel with 450 stainless steel slotted grate

    ULMA M100KX Kit with 450 / IN100KCA Stainless Steel Slotted Grate

    ULMA M100KX Kit with 450 / IN100KCA Stainless Steel Slotted Grate

    Regular price From $427.68 USD
    Regular price Sale price From $427.68 USD
    Unit price /  per 
  • POLYCAST 600 with DG0670

    POLYCAST 600 Series Kit w/ DG0670 Plastic Grate - Load Class A

    POLYCAST 600 Series Kit w/ DG0670 Plastic Grate - Load Class A

    Regular price From $205.58 USD
    Regular price Sale price From $205.58 USD
    Unit price /  per 
  • ULMA HYDRO PLUS with IA-RIV-0520-BF Iron Age River Rock Grate- BoOF Class B

    ULMA HYDROPLUS with Iron Age IA-RIV-0520-BF River Rock - BoOF

    ULMA HYDROPLUS with Iron Age IA-RIV-0520-BF River Rock - BoOF

    Regular price From $563.02 USD
    Regular price Sale price From $563.02 USD
    Unit price /  per 
  • Iron Age Cast Iron Paradise BoOF Grate

    ULMA HYDROPLUS with Iron Age PA5-20I21 / IA-PAR-0520 Paradise BoOF Cast Iron Grate Class B

    ULMA HYDROPLUS with Iron Age PA5-20I21 / IA-PAR-0520 Paradise BoOF Cast Iron Grate Class B

    Regular price From $563.02 USD
    Regular price Sale price From $563.02 USD
    Unit price /  per 
  • ULMA HYDROPLUS with Iron Age Janis BoOF Cast Iron Grate

    ULMA HYDROPLUS with Iron Age IA-JANIS-BF-0520 Janis BoOF Cast Iron Grate Class B

    ULMA HYDROPLUS with Iron Age IA-JANIS-BF-0520 Janis BoOF Cast Iron Grate Class B

    Regular price From $563.02 USD
    Regular price Sale price From $563.02 USD
    Unit price /  per 
  • HYDRO PLUS with Iron Age Mission Bay Heel Proof BoOF Grate IA-BAY00520-HP-BF

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

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

    Regular price From $563.02 USD
    Regular price Sale price From $563.02 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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