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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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    • Popular Manufacturers
      • TDS
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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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  • ULMA HYDRO PLUS with IA-JOE-0520-BF Iron Age Regular Joe BoOF Grate Class B

    ULMA HYDROPLUS with Iron Age RJA5-20I21 / IA-JOE-0520 Regular Joe Raw Cast Iron Grate Class B

    ULMA HYDROPLUS with Iron Age RJA5-20I21 / IA-JOE-0520 Regular Joe Raw Cast Iron Grate Class B

    Regular price From $442.30 USD
    Regular price Sale price From $442.30 USD
    Unit price /  per 
  • FGK-EZ EZ Frame for Fiberglass grates

    EZ Frame Rails for 1.5" or 2.0" Thick Grates - FGK-EZ-1520

    EZ Frame Rails for 1.5" or 2.0" Thick Grates - FGK-EZ-1520

    Regular price From $279.05 USD
    Regular price Sale price From $279.05 USD
    Unit price /  per 
  • 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

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

    Regular price From $451.48 USD
    Regular price Sale price From $451.48 USD
    Unit price /  per 
  • MCKS-TDS571-TDSdrains Sand Mini Channel with Aluminum Cathedral Grate

    NDS 3" Sand Mini Channel Kit with TDS Bronze Age Cathedral Grate - Aluminum

    NDS 3" Sand Mini Channel Kit with TDS Bronze Age Cathedral Grate - Aluminum

    Regular price From $336.47 USD
    Regular price Sale price From $336.47 USD
    Unit price /  per 
  • NDS-Spee-D-channel-Wave-grate-BooF

    NDS Spee-D® Channel w/ 253CI-BF Wave Cast Iron 4"x24" BoOF Grate

    NDS Spee-D® Channel w/ 253CI-BF Wave Cast Iron 4"x24" BoOF Grate

    Regular price From $260.68 USD
    Regular price Sale price From $260.68 USD
    Unit price /  per 
  • ULMA Hydro Mini Plus with IA-GRK-0520-Iron Age Greek Key Grate Class B

    HYDROPLUS Mini w/ Iron Age 5"x20" Greek Key Raw Cast Iron Grate | Class B

    HYDROPLUS Mini w/ Iron Age 5"x20" Greek Key Raw Cast Iron Grate | Class B

    Regular price From $396.78 USD
    Regular price Sale price From $396.78 USD
    Unit price /  per 
  • ULMA HYDROPLUS with Iron Age Janis Raw Cast Iron Grate

    ULMA HYDROPLUS with Iron Age JA5-20I21 / IA-JANIS-0520 Janis Raw Cast Iron Grate Class B

    ULMA HYDROPLUS with Iron Age JA5-20I21 / IA-JANIS-0520 Janis Raw Cast Iron Grate Class B

    Regular price From $451.48 USD
    Regular price Sale price From $451.48 USD
    Unit price /  per 
  • HYDROM-ANISE-0520-HP ULMA HYDROPLUS Anise 0520-Raw

    ULMA HYDROPLUS Mini w/ Iron Age IA-ANISE-0520-HP Anise Heel Proof Cast Iron Grate | Class B

    ULMA HYDROPLUS Mini w/ Iron Age IA-ANISE-0520-HP Anise Heel Proof Cast Iron Grate | Class B

    Regular price From $396.78 USD
    Regular price Sale price From $396.78 USD
    Unit price /  per 
  • FGK-T1215-EZ-15 Fiberglass T-Bar grate with EZ frame

    15" Fiberglass Kit w/ T-Bar T1215 Grate and EZ Frame - Load Class A

    15" Fiberglass Kit w/ T-Bar T1215 Grate and EZ Frame - Load Class A

    Regular price From $542.74 USD
    Regular price Sale price From $542.74 USD
    Unit price /  per 
  • NDS500-BA-LUNA Bronze Age Natural Bronze Luna Grate

    NDS 3" Gray Mini Channel Kit with TDS Bronze Age Luna Grate - Natural

    NDS 3" Gray Mini Channel Kit with TDS Bronze Age Luna Grate - Natural

    Regular price From $465.44 USD
    Regular price Sale price From $465.44 USD
    Unit price /  per 
  • 14" Fiberglass Kit w/ Mesh Grate and WYE Frame - Load Class A

    14" Fiberglass Kit w/ Mesh Grate and WYE Frame - Load Class A

    14" Fiberglass Kit w/ Mesh Grate and WYE Frame - Load Class A

    Regular price From $531.29 USD
    Regular price Sale price From $531.29 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 Mini Plus H80 with IA-LOC-0520 Iron Age Locust Grate Class B

    ULMA HYDROPLUS Mini w/ Iron Age 5" Locust Raw Cast Iron Grate | Class B

    ULMA HYDROPLUS Mini w/ Iron Age 5" Locust Raw Cast Iron Grate | Class B

    Regular price From $396.78 USD
    Regular price Sale price From $396.78 USD
    Unit price /  per 
  • ULMA HYDROPLUS Mini with Interlaken Raw IA-INTER-0520 Class B

    HYDROPLUS Mini w/ Iron Age 5"x 20" Interlaken Raw Cast Iron Grate | Class B

    HYDROPLUS Mini w/ Iron Age 5"x 20" Interlaken Raw Cast Iron Grate | Class B

    Regular price From $389.00 USD
    Regular price Sale price From $389.00 USD
    Unit price /  per 
  • NDS500S-BA-LUNA-B NDS Mini Channel Bronze Age Brushed Bronze Luna Grate

    NDS 3" Sand Mini Channel Kit with TDS Bronze Age Luna Grate - Natural

    NDS 3" Sand Mini Channel Kit with TDS Bronze Age Luna Grate - Natural

    Regular price From $471.47 USD
    Regular price Sale price From $471.47 USD
    Unit price /  per 
  • 12in Micro Mesh EZ Frame

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

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

    Regular price From $552.58 USD
    Regular price Sale price From $552.58 USD
    Unit price /  per 
  • NDS500-BA-BARS-B Bronze Age Brushed Bronze Bars Grate

    NDS 3" Gray Mini Channel Kit with TDS Bronze Age Bars Grate - Brushed

    NDS 3" Gray Mini Channel Kit with TDS Bronze Age Bars Grate - Brushed

    Regular price From $209.94 USD
    Regular price Sale price From $209.94 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 
  • 14" Fiberglass Kit w/ Mesh Grate and EZ Frame - Load Class A

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

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

    Regular price From $497.09 USD
    Regular price Sale price From $497.09 USD
    Unit price /  per 
  • POLY500-PE-675HD-TDSdrains frame cast iron transverse slotted ADA grate POLYCAST polymer concrete channel

    POLYCAST 500 Series Kit w/ DG0675HD Transverse Slot Ductile Iron Grate ADA - HDPE Frame

    POLYCAST 500 Series Kit w/ DG0675HD Transverse Slot Ductile Iron Grate ADA - HDPE Frame

    Regular price From $418.74 USD
    Regular price Sale price From $418.74 USD
    Unit price /  per 
  • NDS500S-BA-STAR NDS Sand Mini Channel Bronze Age Natural Star Grate

    NDS 3" Sand Mini Channel Kit with TDS Bronze Age Star Grate - Natural

    NDS 3" Sand Mini Channel Kit with TDS Bronze Age Star Grate - Natural

    Regular price From $471.47 USD
    Regular price Sale price From $471.47 USD
    Unit price /  per 
  • 10in Micro Mesh-EZ Frame

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

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

    Regular price From $518.99 USD
    Regular price Sale price From $518.99 USD
    Unit price /  per 
  • NDS500-BA-STAR Bronze Age Natural Bronze Star Grate

    NDS 3" Gray Mini Channel Kit with TDS Bronze Age Star Grate - Natural

    NDS 3" Gray Mini Channel Kit with TDS Bronze Age Star Grate - Natural

    Regular price From $465.44 USD
    Regular price Sale price From $465.44 USD
    Unit price /  per 
  • 12" Fiberglass Kit w/ Mesh Grate and WYE Frame - Load Class A

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

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

    Regular price From $498.85 USD
    Regular price Sale price From $498.85 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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