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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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      • 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
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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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Products Blogs
  • ULMA shallow drain channel with stainless steel edge and Iron Age Carbochon grate with Baked on Oil Finish

    ULMA M100KX Kit with Iron Age CAA5-20I21 Carbochon Grate – BoOF

    Sale

    ULMA M100KX Kit with Iron Age CAA5-20I21 Carbochon Grate – BoOF

    Regular price From $718.03 USD
    Regular price $779.98 USD Sale price From $718.03 USD
    Unit price /  per 
    Sale
  • NDS1218GR botanical Green catch basin grate

    NDS 1218GN Class B ADA Compliant Botanical HDPE 12" x 12" Grate - GREEN

    NDS 1218GN Class B ADA Compliant Botanical HDPE 12" x 12" Grate - GREEN

    Regular price $85.87 USD
    Regular price Sale price $85.87 USD
    Unit price /  per 
  • M100KX ULMA polymer concrete channel with stainless steel edge and Iron Age Baked on Oil Finish Cast Iron grate

    ULMA M100KX Kit with Iron Age Regular Joe Grate – BoOF

    Sale

    ULMA M100KX Kit with Iron Age Regular Joe Grate – BoOF

    Regular price From $711.98 USD
    Regular price $772.21 USD Sale price From $711.98 USD
    Unit price /  per 
    Sale
  • PCK5-DG0647 POLYCAST 500 Series with DG0647 Stainless Steel Grates

    POLYCAST 500 Series Kit with DG0647 Slotted Stainless Grate

    POLYCAST 500 Series Kit with DG0647 Slotted Stainless Grate

    Regular price From $359.91 USD
    Regular price Sale price From $359.91 USD
    Unit price /  per 
  • Hydro Plus with 488 Vinylester .6 inch center 1M Grate Class C

    ULMA HYDROPLUS with (488) Vinyl Ester FRP (0.6" on center) 1M Grates Class C

    Sale

    ULMA HYDROPLUS with (488) Vinyl Ester FRP (0.6" on center) 1M Grates Class C

    Regular price From $331.70 USD
    Regular price $423.85 USD Sale price From $331.70 USD
    Unit price /  per 
    Sale
  • ULMA D100 w/Bronze Age™ FERN Ductile Iron Grate - RAW

    ULMA D100 w/Bronze Age™ FERN Ductile Iron Grate - RAW

    Sale

    ULMA D100 w/Bronze Age™ FERN Ductile Iron Grate - RAW

    Regular price From $414.64 USD
    Regular price $421.92 USD Sale price From $414.64 USD
    Unit price /  per 
    Sale
  • POLY600-GS-675HD-TDSdrains galv steel edge transverse slotted grate polymer concrete channel Polycast

    POLYCAST 600 Series Kit w/ ADA DG0675HD Transverse Slot Ductile Iron Grate & Galvanized Edging

    POLYCAST 600 Series Kit w/ ADA DG0675HD Transverse Slot Ductile Iron Grate & Galvanized Edging

    Regular price From $248.07 USD
    Regular price Sale price From $248.07 USD
    Unit price /  per 
  • Ulma U100KX Channel with Iron Age Regular Joe grate with Baked on Oil Finish

    ULMA U100KX Drain Channel w/ Iron Age Regular Joe Grate - BoOF

    Sale

    ULMA U100KX Drain Channel w/ Iron Age Regular Joe Grate - BoOF

    Regular price From $351.82 USD
    Regular price $385.74 USD Sale price From $351.82 USD
    Unit price /  per 
    Sale
  • POLY600-XX-647R

    POLYCAST 600 Series Kit with DG0647R Reinforced Slotted Stainless Grate

    POLYCAST 600 Series Kit with DG0647R Reinforced Slotted Stainless Grate

    Regular price From $525.53 USD
    Regular price Sale price From $525.53 USD
    Unit price /  per 
  • POLY700-PE-644SP polycast 700 with HDPE frame and Fiberglass 644SP grates

    POLYCAST® 700 Vinyl Ester Series Kit w/FG0644SP Fiberglass Slotted Grate & HDPE Frame

    POLYCAST® 700 Vinyl Ester Series Kit w/FG0644SP Fiberglass Slotted Grate & HDPE Frame

    Regular price From $843.09 USD
    Regular price Sale price From $843.09 USD
    Unit price /  per 
  • Trench•Era™ FP Series Drain System w/DG3043D 8" Wide Class D Grate - MD Galvanized Frame

    Trench•Era™ FP Series Drain System w/DG3043D 8" Wide Class D Grate - MD Galvanized Frame

    Trench•Era™ FP Series Drain System w/DG3043D 8" Wide Class D Grate - MD Galvanized Frame

    Request quote
  • MV+200K-661 ULMA MULTIV with galvanized edging with 661 grate

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

    Sale

    ULMA MV+200K 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
  • M100K- with 402 Galvanized Mesh Grate

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

    Sale

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

    Regular price From $247.65 USD
    Regular price $308.40 USD Sale price From $247.65 USD
    Unit price /  per 
    Sale
  • NDS1218 botanical black catch basin grate

    NDS 1218 Class B ADA Compliant Botanical HDPE 12" x 12" Grate - Black

    NDS 1218 Class B ADA Compliant Botanical HDPE 12" x 12" Grate - Black

    Regular price $90.92 USD
    Regular price Sale price $90.92 USD
    Unit price /  per 
  • New Image Coming Soon

    Zurn ZF806 Flo-Thru® Drain with P6-HPP Black HDPE Grate - HD Z Frame

    Zurn ZF806 Flo-Thru® Drain with P6-HPP Black HDPE Grate - HD Z Frame

    Regular price From $2,383.80 USD
    Regular price Sale price From $2,383.80 USD
    Unit price /  per 
  • ZURN 4" Z884 male channel

    ZURN Z884 4.75" Neutral Drain Channel

    ZURN Z884 4.75" Neutral Drain Channel

    Regular price $110.40 USD
    Regular price Sale price $110.40 USD
    Unit price /  per 
  • Vinylester-487-FRP-0.9-in-on-center-0.5M-length-510x510

    TDS 487 Class B Vinyl-Ester Fiberglass Bar 122mm x 0.5M Bar Grate - 0.9" centers

    Sale

    TDS 487 Class B Vinyl-Ester Fiberglass Bar 122mm x 0.5M Bar Grate - 0.9" centers

    Regular price $74.43 USD
    Regular price $95.70 USD Sale price $74.43 USD
    Unit price /  per 
    Sale
  • Zurn P6-GHPD Galvanized Ductile Iron Grate (2)

    Zurn P6-GHPD 5-3/8" Galvanized Ductile Iron Slotted Grate

    Zurn P6-GHPD 5-3/8" Galvanized Ductile Iron Slotted Grate

    Regular price $143.20 USD
    Regular price Sale price $143.20 USD
    Unit price /  per 
  • TDS500S-TDSdrains

    NDS 500-HS Mini Channel 3" x 36" - SAND

    NDS 500-HS Mini Channel 3" x 36" - SAND

    Regular price $49.25 USD
    Regular price Sale price $49.25 USD
    Unit price /  per 
  • POLYCAST 700-PE-669-DK-TDSdrains

    POLYCAST® 700 Vinyl Ester Kit w/DG0669 Stainless Steel Bar Grate & HDPE Frame

    POLYCAST® 700 Vinyl Ester Kit w/DG0669 Stainless Steel Bar Grate & HDPE Frame

    Regular price From $1,668.82 USD
    Regular price Sale price From $1,668.82 USD
    Unit price /  per 
  • POLYCAST®500 Series Kit w/ DG0655R Wedge Wire Grate | Load Class C

    POLYCAST®500 Series Kit w/ DG0655R Wedge Wire Grate | Load Class C

    POLYCAST®500 Series Kit w/ DG0655R Wedge Wire Grate | Load Class C

    Regular price From $640.68 USD
    Regular price Sale price From $640.68 USD
    Unit price /  per 
  • NDS-2outlet-catch-basin-4in-outlets-sand-wave-grate-TDSdrains (1)

    NDS 12" Catch Basin Kit with NDS Wave Grate | Sand

    NDS 12" Catch Basin Kit with NDS Wave Grate | Sand

    Regular price From $169.25 USD
    Regular price Sale price From $169.25 USD
    Unit price /  per 
  • HYDROPLUS - 438-SS Reinforced Wedge Wire Grate

    ULMA HYDROPLUS w/ (438) Stainless Steel Reinforced Wedge Wire Grate

    Sale

    ULMA HYDROPLUS w/ (438) Stainless Steel Reinforced Wedge Wire Grate

    Regular price From $555.63 USD
    Regular price $711.76 USD Sale price From $555.63 USD
    Unit price /  per 
    Sale
  • ZF806-DGC ductile iron grate and fiber reinforced polymer trench drain

    Zurn ZF806 Flo-Thru® Drain with P6-DGC Ductile Iron Grate - HD Z Frame

    Zurn ZF806 Flo-Thru® Drain with P6-DGC Ductile Iron Grate - HD Z Frame

    Regular price From $2,239.80 USD
    Regular price Sale price From $2,239.80 USD
    Unit price /  per 
  • Zurn Z882 Linear Drain Kit w/P12-DGE Ductile Iron Grate & Bottom Outlet

    Zurn Z882 Linear Drain Kit w/P12-DGE Ductile Iron Grate & Bottom Outlet

    Zurn Z882 Linear Drain Kit w/P12-DGE Ductile Iron Grate & Bottom Outlet

    Regular price From $2,979.80 USD
    Regular price Sale price From $2,979.80 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 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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