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      • TDS
      • NDS
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      • Polycast 600/700
      • Slim Channel
      • SS600
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      • All Drainage Systems
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      • FP1200
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      • Polycast 600/700
      • Slim Channel
      • SS600
      • ULMA U100K(X)
      • All Drainage Systems
    • Grate Material
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  • ULMA HYDROPLUS with Iron Age Oblio Heel Proof Cast Iron Raw Grate

    ULMA HYDROPLUS w/ IA-OBLIO-0520-HP Oblio Heel Proof Raw Cast Iron Grate Class B

    Sale

    ULMA HYDROPLUS w/ IA-OBLIO-0520-HP Oblio Heel Proof Raw Cast Iron Grate Class B

    Regular price From $441.85 USD
    Regular price $465.78 USD Sale price From $441.85 USD
    Unit price /  per 
    Sale
  • U100K with Galvanized Heelproof 406

    ULMA U100K Drainage Kit with ULMA Heel-Proof 406 Mesh Grate | Galvanized

    Sale

    ULMA U100K Drainage Kit with ULMA Heel-Proof 406 Mesh Grate | Galvanized

    Regular price From $134.19 USD
    Regular price $172.54 USD Sale price From $134.19 USD
    Unit price /  per 
    Sale
  • ULMA HYDROPLUS with Iron Age Oblio Heel Proof Cast Iron BoOF Grate

    ULMA HYDROPLUS with Iron Age IA-OBLIO-0520-HP Oblio Heel Proof BoOF Cast Iron Grate Class B

    Sale

    ULMA HYDROPLUS with Iron Age IA-OBLIO-0520-HP Oblio Heel Proof 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
  • U100KM-FNHX100KCCM-1 cast iron heel-proof grate polymer concrete galv edge ULMA channel

    ULMA U100K Drainage Kit with 480 Ductile Iron Heel-Proof Grate

    Sale

    ULMA U100K Drainage Kit with 480 Ductile Iron Heel-Proof Grate

    Regular price From $332.15 USD
    Regular price $417.06 USD Sale price From $332.15 USD
    Unit price /  per 
    Sale
  • ULMA M100V w/Bronze Age™ BARS Ductile Iron Heel-Proof Grate - RAW

    ULMA M100V w/Bronze Age™ BARS Ductile Iron Heel-Proof Grate - RAW

    Sale

    ULMA M100V w/Bronze Age™ BARS Ductile Iron Heel-Proof Grate - RAW

    Regular price From $310.06 USD
    Regular price $338.65 USD Sale price From $310.06 USD
    Unit price /  per 
    Sale
  • IA-OBLIO-0520-HP

    Iron Age IA-OBLIO-0520-HP Class B OBLIO Heelproof Cast Iron 122mm x 500mm Grate - RAW

    Iron Age IA-OBLIO-0520-HP Class B OBLIO Heelproof Cast Iron 122mm x 500mm Grate - RAW

    Regular price $174.46 USD
    Regular price Sale price $174.46 USD
    Unit price /  per 
  • Iron Age Regular Joe Heel Proof BoOF

    Iron Age IA-JOE-0820-HP-BF REGULAR JOE Heel Proof Cast Iron Grate – 8" x 20" BoOF

    Iron Age IA-JOE-0820-HP-BF REGULAR JOE Heel Proof Cast Iron Grate – 8" x 20" BoOF

    Regular price $414.70 USD
    Regular price Sale price $414.70 USD
    Unit price /  per 
  • Zurn P6-RFSC

    Zurn P6-FG Class A Slotted Heel-Proof Galvanized Steel 6" x 40" Grate

    Zurn P6-FG Class A Slotted Heel-Proof Galvanized Steel 6" x 40" Grate

    Regular price $202.00 USD
    Regular price Sale price $202.00 USD
    Unit price /  per 
  • IA-OBLIO-0520-HP-BF

    Iron Age IA-OBLIO-0520-HP-BF Class B OBLIO Heelproof Cast Iron 122mm x 500mm Grate - BoOF

    Iron Age IA-OBLIO-0520-HP-BF Class B OBLIO Heelproof Cast Iron 122mm x 500mm Grate - BoOF

    Regular price $233.09 USD
    Regular price Sale price $233.09 USD
    Unit price /  per 
  • New Image Coming Soon

    ULMA M100V w/Bronze Age™ WAVE Ductile Iron Heel-Proof Grate - RAW

    Sale

    ULMA M100V w/Bronze Age™ WAVE Ductile Iron Heel-Proof Grate - RAW

    Regular price From $310.06 USD
    Regular price $338.65 USD Sale price From $310.06 USD
    Unit price /  per 
    Sale
  • IA-ANISE-0520-HP-BF BOOF Iron Age Grate

    Iron Age IA-ANISE-0520-HP-BF Class B Cast Iron 5x20 Heel Proof ADA Compliant Grate - BoOF

    Iron Age IA-ANISE-0520-HP-BF Class B Cast Iron 5x20 Heel Proof ADA Compliant Grate - BoOF

    Regular price $210.21 USD
    Regular price Sale price $210.21 USD
    Unit price /  per 
  • M100K-PNH100KCAM-BL Poly Black Heel-proof ADA grate polymer concrete galv edge low profile ULMA channel

    ULMA M100K Kit with 494 / PNH100KCAM Polypropylene ADA Heel Proof Grate – BLACK

    Sale

    ULMA M100K Kit with 494 / PNH100KCAM Polypropylene ADA Heel Proof Grate – BLACK

    Regular price From $219.20 USD
    Regular price $271.83 USD Sale price From $219.20 USD
    Unit price /  per 
    Sale
  • FG-T1215-0948 FRP T-Bar Fiberglass Grate

    9" Fiberglass Heel Proof T-Bar Grate - Load Class A

    9" Fiberglass Heel Proof T-Bar Grate - Load Class A

    Regular price $244.33 USD
    Regular price Sale price $244.33 USD
    Unit price /  per 
  • ULMA HYDRO PLUS with IA-JOE-0520-HP-BF Iron Age Regular Joe Heel Proof BoOF Grate_Class B

    ULMA HYDROPLUS with Iron Age IA-JOE-0520-HP-BF Regular Joe Heel Proof - BoOF

    Sale

    ULMA HYDROPLUS with Iron Age IA-JOE-0520-HP-BF Regular Joe Heel Proof - BoOF

    Regular price From $551.97 USD
    Regular price $573.86 USD Sale price From $551.97 USD
    Unit price /  per 
    Sale
  • New Image Coming Soon

    ULMA M100V w/Bronze Age™ CATHEDRAL Ductile Iron Heel-Proof Grate - RAW

    Sale

    ULMA M100V w/Bronze Age™ CATHEDRAL Ductile Iron Heel-Proof Grate - RAW

    Regular price From $310.06 USD
    Regular price $338.65 USD Sale price From $310.06 USD
    Unit price /  per 
    Sale
  • New Image Coming Soon

    ULMA M100V w/Bronze Age™ LUNA Ductile Iron Heel-Proof Grate - RAW

    Sale

    ULMA M100V w/Bronze Age™ LUNA Ductile Iron Heel-Proof Grate - RAW

    Regular price From $310.06 USD
    Regular price $338.65 USD Sale price From $310.06 USD
    Unit price /  per 
    Sale
  • M100KX Polymer concrete linear channel with stainless steel edge with 495 grey poly grates

    ULMA M100K Kit with 495 / PNH100KCAM-GRIS Polypropylene ADA Heel Proof Grate – GRAY

    Sale

    ULMA M100K Kit with 495 / PNH100KCAM-GRIS Polypropylene ADA Heel Proof Grate – GRAY

    Regular price From $225.34 USD
    Regular price $279.72 USD Sale price From $225.34 USD
    Unit price /  per 
    Sale
  • 480 FNHX100KCCM ductile iron heel-proof wave grate

    ULMA 480 Class C Wave Iron Heel-Proof Ductile Iron 122mm x 500mm Grate

    Sale

    ULMA 480 Class C Wave Iron Heel-Proof Ductile Iron 122mm x 500mm Grate

    Regular price $54.34 USD
    Regular price $48.91 USD Sale price $54.34 USD
    Unit price /  per 
    Sale
  • New Image Coming Soon

    ULMA M100V w/Bronze Age™ PEDREDA Ductile Iron Heel-Proof Grate - RAW

    Sale

    ULMA M100V w/Bronze Age™ PEDREDA Ductile Iron Heel-Proof Grate - RAW

    Regular price From $310.06 USD
    Regular price $338.65 USD Sale price From $310.06 USD
    Unit price /  per 
    Sale
  • Zurn P12-PSR Raised Perforated Stainless Steel ADA Grate Anti-Slip Heel-Proof

    Zurn P12-PSR Class A ADA Raised Perforated Heel-Proof Stainless Steel 12" x 24" Grate

    Zurn P12-PSR Class A ADA Raised Perforated Heel-Proof Stainless Steel 12" x 24" Grate

    Regular price $884.00 USD
    Regular price Sale price $884.00 USD
    Unit price /  per 
  • ULMA M100K w/Bronze Age™ Luna Ductile Iron Heel-Proof Grate - RAW

    ULMA M100K w/Bronze Age™ Luna Ductile Iron Heel-Proof Grate - RAW

    Sale

    ULMA M100K w/Bronze Age™ Luna Ductile Iron Heel-Proof Grate - RAW

    Regular price From $351.07 USD
    Regular price $391.38 USD Sale price From $351.07 USD
    Unit price /  per 
    Sale
  • MV+200DI-661

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

    Sale

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

    Regular price From $206.73 USD
    Regular price $265.80 USD Sale price From $206.73 USD
    Unit price /  per 
    Sale
  • P6-HPP-GRAY

    Zurn P6-HPP Class A Linear Slotted HDPE 6" x 20" Grate - GRAY

    Zurn P6-HPP Class A Linear Slotted HDPE 6" x 20" Grate - GRAY

    Regular price $135.00 USD
    Regular price Sale price $135.00 USD
    Unit price /  per 
  • ULMA MultiV200 658 - FNHX200RGCM Heelproof

    ULMA 658 Slotted Heel Proof Ductile Iron 9x20 Class C Grate - MultiV+200

    Sale

    ULMA 658 Slotted Heel Proof Ductile Iron 9x20 Class C Grate - MultiV+200

    Regular price $91.73 USD
    Regular price $82.56 USD Sale price $91.73 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
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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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