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    • Popular Manufacturers
      • 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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      • Plastic
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      • 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
      • NDS
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      • Polylok
      • ULMA
      • 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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      • Bronze
      • Ductile/Cast Iron
      • Fiberglass
      • Galvanized Steel
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  • ULMA HYDROPLUS Mini with IA-JANIS-0520 Iron Age Janis Grate Raw

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

    Sale

    ULMA HYDROPLUS Mini w/ Iron Age 5" Janis 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
  • 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

    Sale

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

    Regular price From $396.55 USD
    Regular price $403.30 USD Sale price From $396.55 USD
    Unit price /  per 
    Sale
  • ULMA HYDROPLUS 90 Degree

    ULMA HYDROPLUS 90 Degree Corner Kit HYDRO-90

    Sale

    ULMA HYDROPLUS 90 Degree Corner Kit HYDRO-90

    Regular price $112.96 USD
    Regular price $145.24 USD Sale price $112.96 USD
    Unit price /  per 
    Sale
  • ULMA HYDROM-INTER-HP HYDROPLUS Mini Interlaken Heelproof - Raw

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

    Sale

    HYDROPLUS Mini w/ Iron Age 5"x 20" Heel Proof Interlaken 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
  • ULMA HYDROM-INTER-HP-BF HYDROPLUS Mini Interlaken Heelproof - BoOF

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

    Sale

    HYDROPLUS Mini w/ Iron Age 5"x 20" Heel Proof Interlaken 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-GRK-0520-BF Iron Age Greek Key BoOF Grate Class B

    HYDROPLUS Mini w/ Iron Age 5"x 20" Greek Key BoOF Cast Iron Grate | Class B

    Sale

    HYDROPLUS Mini w/ Iron Age 5"x 20" Greek Key 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 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
  • ULMA Hydro Mini Plus H80 with IA-IA-JOE-0520 Iron Age Regular Joe Grate Class B

    ULMA HYDROPLUS Mini w/ Iron Age Regular Joe Raw Cast Iron Grate | Class B

    Sale

    ULMA HYDROPLUS Mini w/ Iron Age Regular Joe Raw Cast Iron Grate | Class B

    Regular price From $396.55 USD
    Regular price $403.30 USD Sale price From $396.55 USD
    Unit price /  per 
    Sale
  • TP0650S-AA-646R

    TV0750S (Shallow) Catch Basin Kit w/ DG0646RH for POLYCAST®-Ductile Iron Frame

    TV0750S (Shallow) Catch Basin Kit w/ DG0646RH for POLYCAST®-Ductile Iron Frame

    Regular price $654.25 USD
    Regular price Sale price $654.25 USD
    Unit price /  per 
  • New Image Coming Soon

    POLYCAST®DP0750 Inline Catch Basin w/DG0641D-G Slotted Ductile Iron-Galvanized Grate & HDPE Frame

    POLYCAST®DP0750 Inline Catch Basin w/DG0641D-G Slotted Ductile Iron-Galvanized Grate & HDPE Frame

    Regular price $456.31 USD
    Regular price Sale price $456.31 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

    Sale

    ULMA HYDROPLUS Mini w/ Iron Age 5" Locust 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
  • 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

    Sale

    ULMA HYDROPLUS Mini w/ Iron Age IA-ANISE-0520-HP Anise Heel Proof 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
  • ULMA HYDROPLUS Mini with IA-CARBO-0520-BF Iron Age Carbochon Grate BoOF

    HYDROPLUS Mini w/ Iron Age 5"x20" Carbochon BoOF Cast Iron Grate | Class B

    Sale

    HYDROPLUS Mini w/ Iron Age 5"x20" Carbochon 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
  • Bullseye BoOF 6 inch diameter Iron Age deco drain grate

    Iron Age IA-BULL-6D-HP-BF Class A ADA Heel-Proof Bullseye Cast Iron 6" Dia Grate – BoOF

    Iron Age IA-BULL-6D-HP-BF Class A ADA Heel-Proof Bullseye Cast Iron 6" Dia Grate – BoOF

    Regular price $150.15 USD
    Regular price Sale price $150.15 USD
    Unit price /  per 
  • ULMA HYDROPLUS Mini w/ 465 Ductile Iron Grate Class B

    ULMA HYDROPLUS Mini w/ 465 Ductile Iron Grate Class B

    Sale

    ULMA HYDROPLUS Mini w/ 465 Ductile Iron Grate Class B

    Regular price From $102.68 USD
    Regular price $125.16 USD Sale price From $102.68 USD
    Unit price /  per 
    Sale
  • POLYCAST® DP0750 Inline Catch Basin w/DG0675HD Transverse Slotted Ductile Iron Grate & HDPE Frame

    POLYCAST® DP0750 Inline Catch Basin w/DG0675HD Transverse Slotted Ductile Iron Grate & HDPE Frame

    POLYCAST® DP0750 Inline Catch Basin w/DG0675HD Transverse Slotted Ductile Iron Grate & HDPE Frame

    Regular price $442.66 USD
    Regular price Sale price $442.66 USD
    Unit price /  per 
  • ULMA HYDROPLUS Mini with IA-MIN-0520 Iron Age Minnione Grate Raw

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

    Sale

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

    Regular price From $402.60 USD
    Regular price $411.08 USD Sale price From $402.60 USD
    Unit price /  per 
    Sale
  • TP0650S-CF-669H Inline shallow Catch basin with cast iron frame and stainless steel bar grate

    TP0750S (Shallow) Catch Basin Kit w/ DG0669 for POLYCAST®-Ductile Iron Frame

    TP0750S (Shallow) Catch Basin Kit w/ DG0669 for POLYCAST®-Ductile Iron Frame

    Regular price $908.57 USD
    Regular price Sale price $908.57 USD
    Unit price /  per 
  • ULMA HYDROPLUS Mini with IA-JANIS-0520-BF Iron Age Janis Grate BoOF

    HYDROPLUS Mini w/ Iron Age 5" Janis BoOF Cast Iron Grate | Class B

    Sale

    HYDROPLUS Mini w/ Iron Age 5" Janis 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
  • TP0650S - DG0675HD-GE Catch Basin w/ Cast Iron Transverse Slotted Grate and Galvanized Edging

    TP0650S (Shallow) Catch Basin Kit w/ DG0675HD & Galvanized Edge for POLYCAST®

    TP0650S (Shallow) Catch Basin Kit w/ DG0675HD & Galvanized Edge for POLYCAST®

    Regular price $386.10 USD
    Regular price Sale price $386.10 USD
    Unit price /  per 
  • PolycastAA-Frame-DK cast iron frame

    DG0700AA POLYCAST HARDNOSE 700 Series Cast Iron Frame

    DG0700AA POLYCAST HARDNOSE 700 Series Cast Iron Frame

    Regular price $50.58 USD
    Regular price Sale price $50.58 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 HYDROPLUS Mini with IA-MIN-0520-BF Iron Age Minnione Grate BoOF

    ULMA HYDROPLUS Mini w/ Iron Age Minnione BoOF Cast Iron Grate | Class B

    Sale

    ULMA HYDROPLUS Mini w/ Iron Age Minnione 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
  • TP0650S-AA-640R

    TP0750S (Shallow) Catch Basin Kit w/ DG0640RH for POLYCAST®-Ductile Iron Frame

    TP0750S (Shallow) Catch Basin Kit w/ DG0640RH for POLYCAST®-Ductile Iron Frame

    Regular price $534.29 USD
    Regular price Sale price $534.29 USD
    Unit price /  per 
  • ULMA Hydro Mini Plus H80 with IA-IA-JOE-0520-BF Iron Age Regular Joe Grate BoOF Class B

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

    Sale

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

    Regular price From $513.81 USD
    Regular price $520.56 USD Sale price From $513.81 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 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

    $80.36 $62.50
  • 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 $26.22
  • LD100X-2 Locking Device for ULMA Grates

    LD100X-2 Locking Device for ULMA Grates

    $12.96 $10.08
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