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  • Drainage Kits
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      • TDS
      • NDS
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      • Zurn
      • All Manufacturers
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      • Dura Slope
      • Mini Channel
      • Polycast 600/700
      • Slim Channel
      • SS600
      • ULMA U100K(X)
      • All Drainage Systems
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      • Pour in Place (Concrete)
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    • Popular 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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  • 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
  • 488_Vinylester FRP 0.6 in center 1M Grate

    TDS 488 Vinyl-Ester Fiberglass Bar 122mm x 1M Bar Grate - 0.6" on center - Class C

    Sale

    TDS 488 Vinyl-Ester Fiberglass Bar 122mm x 1M Bar Grate - 0.6" on center - Class C

    Regular price $194.32 USD
    Regular price $249.84 USD Sale price $194.32 USD
    Unit price /  per 
    Sale
  • ULMA U100KX with 488 Vinyl Ester 0.6 FRP Grate

    ULMA U100KX Kit with TDS 488 Vinyl Ester Bar Grate 0.6" on Center (1M)

    Sale

    ULMA U100KX Kit with TDS 488 Vinyl Ester Bar Grate 0.6" on Center (1M)

    Regular price From $237.95 USD
    Regular price $305.93 USD Sale price From $237.95 USD
    Unit price /  per 
    Sale
  • TP0650S - DG0640R-GE Catch Basin w/ Galvanized Slotted Grate and Edging

    TV0650S (Shallow) Catch Basin Kit w/ DG0640RH & Galvanized Edge for POLYCAST®

    TV0650S (Shallow) Catch Basin Kit w/ DG0640RH & Galvanized Edge for POLYCAST®

    Regular price $669.75 USD
    Regular price Sale price $669.75 USD
    Unit price /  per 
  • 486_Vinylester FRP 0.9 on center 1M Grate

    TDS 486 Vinyl-Ester Fiberglass Bar 122mm x 1M Bar Grate - 0.9" on Center - Class B

    Sale

    TDS 486 Vinyl-Ester Fiberglass Bar 122mm x 1M Bar Grate - 0.9" on Center - Class B

    Regular price $149.88 USD
    Regular price $192.71 USD Sale price $149.88 USD
    Unit price /  per 
    Sale
  • ULMA U100K with 488 Vinyl Ester 0.6 FRP Grate

    ULMA U100K Drainage Kit with TDS Vinyl Ester Bar Grate 0.6" on Center

    Sale

    ULMA U100K Drainage Kit with TDS Vinyl Ester Bar Grate 0.6" on Center

    Regular price From $494.84 USD
    Regular price $626.23 USD Sale price From $494.84 USD
    Unit price /  per 
    Sale
  • TA0650STC

    TDS TA0650STC Shallow Debris/Trash Basket - Stainless

    TDS TA0650STC Shallow Debris/Trash Basket - Stainless

    Regular price $349.57 USD
    Regular price Sale price $349.57 USD
    Unit price /  per 
  • Vinylester-489-FRP-0.6-in-on-center-0.5M-length-510x510

    TDS 489 Vinyl-Ester Fiberglass Bar 122mm x 0.5M Bar Grate - 0.6" on center - Class C

    Sale

    TDS 489 Vinyl-Ester Fiberglass Bar 122mm x 0.5M Bar Grate - 0.6" on center - Class C

    Regular price $96.99 USD
    Regular price $124.70 USD Sale price $96.99 USD
    Unit price /  per 
    Sale
  • 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
  • Hydro Plus with 486 Vinylester .9 inch center 1M Grate Class B

    ULMA HYDROPLUS with (486) Vinyl Ester FRP (0.9" on center) 1M Grates Class B

    Sale

    ULMA HYDROPLUS with (486) Vinyl Ester FRP (0.9" on center) 1M Grates Class B

    Regular price From $242.81 USD
    Regular price $309.57 USD Sale price From $242.81 USD
    Unit price /  per 
    Sale
  • POLY600-xx-641D-TDSdrains ductile iron slotted grate polymer concrete channel Polycast

    POLYCAST 600 Series Kit with DG0641D Slotted Ductile Iron Grate

    POLYCAST 600 Series Kit with DG0641D Slotted Ductile Iron Grate

    Regular price From $212.20 USD
    Regular price Sale price From $212.20 USD
    Unit price /  per 
  • POLY700-PE-675D-TDSdrains HPDE frame cast iron transverse slotted grate polymer concrete channel Polycast

    POLYCAST 700 Series Kit w/ DG0675HD ADA Transverse Slot Ductile Iron Grate & HDPE Frame

    POLYCAST 700 Series Kit w/ DG0675HD ADA Transverse Slot Ductile Iron Grate & HDPE Frame

    Regular price From $285.90 USD
    Regular price Sale price From $285.90 USD
    Unit price /  per 
  • TP0650S-PE-647R

    TP0750S (Shallow) Catch Basin Kit w/ DG0647RH for POLYCAST®-HDPE Frame

    TP0750S (Shallow) Catch Basin Kit w/ DG0647RH for POLYCAST®-HDPE Frame

    Regular price $654.82 USD
    Regular price Sale price $654.82 USD
    Unit price /  per 
  • POLY700-AA-641D-TDSdrains cast iron frame ductile iron slotted grate polymer concrete channel Polycast

    POLYCAST 700 Series Kit w/ DG0641D Slotted Ductile Iron Grate & Frame

    POLYCAST 700 Series Kit w/ DG0641D Slotted Ductile Iron Grate & Frame

    Regular price From $286.76 USD
    Regular price Sale price From $286.76 USD
    Unit price /  per 
  • TP0650S-PE-640R

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

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

    Regular price $515.79 USD
    Regular price Sale price $515.79 USD
    Unit price /  per 
  • TP0650S-DG0669-PF Catch Basin w/ Stainless Steel Bar Grate with HDPE Grate

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

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

    Regular price $877.95 USD
    Regular price Sale price $877.95 USD
    Unit price /  per 
  • TP0650S-CF-647RH Linear Catch Basin with Cast Iron Frame and Stainless Steel Slot grate

    TP0750S (Shallow) Catch Basin Kit w/ DG0647RH for POLYCAST®-Ductile Iron Frame

    TP0750S (Shallow) Catch Basin Kit w/ DG0647RH for POLYCAST®-Ductile Iron Frame

    Regular price $691.71 USD
    Regular price Sale price $691.71 USD
    Unit price /  per 
  • SS0642F_TDS

    TDS SS0642F Hold-Down Device for SS600 Fiberglass Grates

    TDS SS0642F Hold-Down Device for SS600 Fiberglass Grates

    Regular price $29.73 USD
    Regular price Sale price $29.73 USD
    Unit price /  per 
  • POLY700-PE-657R

    POLYCAST® 700 Kit w/DG0657R Stainless Perforated Grate & HDPE Frame

    POLYCAST® 700 Kit w/DG0657R Stainless Perforated Grate & HDPE Frame

    Regular price From $532.41 USD
    Regular price Sale price From $532.41 USD
    Unit price /  per 
  • ULMA D100_0.6 Vinyl Ester FRP 488 Grate

    ULMA D100 Drain Channel w/488 Slotted Fiberglass Grate - Class C

    Sale

    ULMA D100 Drain Channel w/488 Slotted Fiberglass Grate - Class C

    Regular price From $478.41 USD
    Regular price $553.91 USD Sale price From $478.41 USD
    Unit price /  per 
    Sale
  • 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 
  • POLYCAST 600 with DG0646R

    POLYCAST® 600 Series Kit with DG0646R Reinforced Perforated Galvanized Grate

    POLYCAST® 600 Series Kit with DG0646R Reinforced Perforated Galvanized Grate

    Regular price From $337.62 USD
    Regular price Sale price From $337.62 USD
    Unit price /  per 
  • POLY600-xx-675D-TDsdrains cast iron transverse ada grate polymer concrete channel Polycast

    POLYCAST 600 Series Kit with DG0675HD ADA Transverse Slotted Ductile Iron Grate

    POLYCAST 600 Series Kit with DG0675HD ADA Transverse Slotted Ductile Iron Grate

    Regular price From $223.24 USD
    Regular price Sale price From $223.24 USD
    Unit price /  per 
  • Polycast-w-SS-HD-Bar-Grate-SS-edging2-DK

    POLYCAST® 600 Series Kit w/ DG0669 Stainless Bar Grate & Stainless Edging

    POLYCAST® 600 Series Kit w/ DG0669 Stainless Bar Grate & Stainless Edging

    Regular price From $771.75 USD
    Regular price Sale price From $771.75 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 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
  • 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
  • LD100X-2 Locking Device for ULMA Grates

    LD100X-2 Locking Device for ULMA Grates

    $12.96 $10.08
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