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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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      • Pour in Place (Concrete)
      • All Channel Materials
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      • TDS
      • Bronze Age
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      • Zurn
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    • 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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  • POLY700-AA-640R

    POLYCAST®700 Kit w/ DG0640R Reinforced Galvanized Slotted Grate - Ductile Iron Frame

    POLYCAST®700 Kit w/ DG0640R Reinforced Galvanized Slotted Grate - Ductile Iron Frame

    Regular price From $725.50 USD
    Regular price Sale price From $725.50 USD
    Unit price /  per 
  • FGK-HLC-10-Grate Fiberglass Grate

    FG-HLC-1048 Mesh Fiberglass 10" X 48" Grate | Load Class C

    FG-HLC-1048 Mesh Fiberglass 10" X 48" Grate | Load Class C

    Regular price $443.10 USD
    Regular price Sale price $443.10 USD
    Unit price /  per 
  • TP0650S Catch basin with DG0655R Stainless Steel Reinforced Wedge Wire Grate

    TV0650S (Shallow) VE Catch Basin Kit w/ DG0655H for POLYCAST®

    TV0650S (Shallow) VE Catch Basin Kit w/ DG0655H for POLYCAST®

    Regular price $744.85 USD
    Regular price Sale price $744.85 USD
    Unit price /  per 
  • DP0650S-POLYCAST inline catch basin

    TP0750S (Shallow) Catch Basin Kit w/ DG0692 for POLYCAST®-HDPE Frame

    TP0750S (Shallow) Catch Basin Kit w/ DG0692 for POLYCAST®-HDPE Frame

    Regular price $397.84 USD
    Regular price Sale price $397.84 USD
    Unit price /  per 
  • NDS420-pop-up-emitter

    NDS 420 Pop-Up Emitter for 3" & 4" SDR pipe

    NDS 420 Pop-Up Emitter for 3" & 4" SDR pipe

    Regular price $25.09 USD
    Regular price Sale price $25.09 USD
    Unit price /  per 
  • ULMA HYDROPLUS with 480 ductile iron heel proof slotted grate

    ULMA HYDROPLUS Mini with Ductile Iron Slotted Grate (480) Class C

    Sale

    ULMA HYDROPLUS Mini with Ductile Iron Slotted Grate (480) Class C

    Regular price From $129.76 USD
    Regular price $159.97 USD Sale price From $129.76 USD
    Unit price /  per 
    Sale
  • BA-LUNA-0312-BF TDS Bronze Age Luna Grate in Ductile Iron with BoOF finish

    TDS® 3" Gray Max Mini w/ Bronze Age™ Luna Grate - BoOF & Oil Rubbed Bronze Edge

    TDS® 3" Gray Max Mini w/ Bronze Age™ Luna Grate - BoOF & Oil Rubbed Bronze Edge

    Regular price From $722.26 USD
    Regular price Sale price From $722.26 USD
    Unit price /  per 
  • ULMA HYDRO PLUS with IA-GRK-0520-BF Iron Age Greek Key BoOF Grate-Class B

    ULMA HYDROPLUS w/ Iron Age IA-GRK-0520-BF Greek Key BoOF Cast Iron Grate Class B

    Sale

    ULMA HYDROPLUS w/ Iron Age IA-GRK-0520-BF Greek Key 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
  • TDS 3000 galvanized grate DG3048R

    TDS DG3048R Class C BAR Galvanized 8" x 24" Grate

    TDS DG3048R Class C BAR Galvanized 8" x 24" Grate

    Regular price $361.89 USD
    Regular price Sale price $361.89 USD
    Unit price /  per 
  • TP0650S-AA-644SP

    TP0750S (Shallow) Catch Basin Kit w/ FG0644SPH for POLYCAST®-HDPE Frame

    TP0750S (Shallow) Catch Basin Kit w/ FG0644SPH for POLYCAST®-HDPE Frame

    Regular price $474.79 USD
    Regular price Sale price $474.79 USD
    Unit price /  per 
  • TP0750S (Shallow) Catch Basin Kit w/ DG0655R for POLYCAST®-HDPE Frame

    TP0750S (Shallow) Catch Basin Kit w/ DG0655R for POLYCAST®-HDPE Frame

    TP0750S (Shallow) Catch Basin Kit w/ DG0655R for POLYCAST®-HDPE Frame

    Regular price $637.19 USD
    Regular price Sale price $637.19 USD
    Unit price /  per 
  • Hydro Mini Plus with 486 Vinylester FRP .9 on center Grate Class B_1 Meter

    ULMA HYDROPLUS Mini with 486 Fiberglass Grate - Load Class B

    Sale

    ULMA HYDROPLUS Mini with 486 Fiberglass Grate - Load Class B

    Regular price From $203.56 USD
    Regular price $254.87 USD Sale price From $203.56 USD
    Unit price /  per 
    Sale
  • ULMA HYDROPLUS with Locust Boof IA-LOC-0520-BF

    ULMA HYDROPLUS w/ IA-LOC-0520-BF Iron Age Locust BoOF Cast Iron Grate Class B

    Sale

    ULMA HYDROPLUS w/ IA-LOC-0520-BF Iron Age Locust BoOF Cast Iron Grate Class B

    Regular price From $4,153.47 USD
    Regular price $4,232.00 USD Sale price From $4,153.47 USD
    Unit price /  per 
    Sale
  • ULMA HYDROPLUS Mini w/ PEDREDA Ductile Iron Grate Class C

    ULMA HYDROPLUS Mini w/ PEDREDA Ductile Iron Grate Class C

    Sale

    ULMA HYDROPLUS Mini w/ PEDREDA Ductile Iron Grate Class C

    Regular price From $228.68 USD
    Regular price $237.16 USD Sale price From $228.68 USD
    Unit price /  per 
    Sale
  • ULMA HYDRO PLUS with ULMA 410 Galvanized Steel Slotted Grate-Class A

    ULMA HYDROPLUS with 410 / GP100KCA Galvanized Perforated Tread Grate Class A

    Sale

    ULMA HYDROPLUS with 410 / GP100KCA Galvanized Perforated Tread Grate Class A

    Regular price From $103.15 USD
    Regular price $132.48 USD Sale price From $103.15 USD
    Unit price /  per 
    Sale
  • New Image Coming Soon

    POLYCAST 500 Series Kit w/ DG0646R Reinforced Galvanized Slot Grate-Ductile Iron Frame

    POLYCAST 500 Series Kit w/ DG0646R Reinforced Galvanized Slot Grate-Ductile Iron Frame

    Regular price From $853.30 USD
    Regular price Sale price From $853.30 USD
    Unit price /  per 
  • GF-21424

    GF 21424 Heavy-Duty Gray Iron Slotted 14" x 24" x 2" Grate | General Foundry

    GF 21424 Heavy-Duty Gray Iron Slotted 14" x 24" x 2" Grate | General Foundry

    Regular price $198.99 USD
    Regular price Sale price $198.99 USD
    Unit price /  per 
  • TP0650S-DG0641D-CF Catch Basin w/ Ductile Iron Slotted Grate and Frame

    TV0750S (Shallow) Catch Basin Kit w/ DG0641D for POLYCAST®-Ductile Iron Frame

    TV0750S (Shallow) Catch Basin Kit w/ DG0641D for POLYCAST®-Ductile Iron Frame

    Regular price $528.84 USD
    Regular price Sale price $528.84 USD
    Unit price /  per 
  • POLYCAST-DG0675G-Duraguard-Transverse

    POLYCAST DG0675G Class A Transverse Slotted HDPE 6"x24" (Nominal) Grate - Gray

    POLYCAST DG0675G Class A Transverse Slotted HDPE 6"x24" (Nominal) Grate - Gray

    Regular price $54.92 USD
    Regular price Sale price $54.92 USD
    Unit price /  per 
  • MMG-BF-BARS-B

    TDS™ 3" Gray MAX Mini w/ Brushed Bronze BARS Grate & Oil Rubbed Bronze Edge

    TDS™ 3" Gray MAX Mini w/ Brushed Bronze BARS Grate & Oil Rubbed Bronze Edge

    Regular price From $1,198.59 USD
    Regular price Sale price From $1,198.59 USD
    Unit price /  per 
  • ULMA Hydro Mini Plus H80 with IA-ARGO-0520-HP Iron Age Argo Heel proof Grate Class B

    ULMA HYDROPLUS Mini w/ Iron Age IA-ARGO-0520-HP Argo Heel Proof Raw Cast Iron Grate Class B

    Sale

    ULMA HYDROPLUS Mini w/ Iron Age IA-ARGO-0520-HP Argo Heel Proof 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
  • MAX Mini with NDS554CI-BF Botanical Cast Iron Grate

    TDS™ 3" Sand MAX Mini w/ Botanical BoOF Grate & Oil Rubbed Bronze Edge

    TDS™ 3" Sand MAX Mini w/ Botanical BoOF Grate & Oil Rubbed Bronze Edge

    Regular price From $744.86 USD
    Regular price Sale price From $744.86 USD
    Unit price /  per 
  • ULMA HYDROPLUS Mini w/ WAVE Ductile Iron Grate Class C

    ULMA HYDROPLUS Mini w/ WAVE Ductile Iron Grate Class C

    Sale

    ULMA HYDROPLUS Mini w/ WAVE Ductile Iron Grate Class C

    Regular price From $228.68 USD
    Regular price $237.16 USD Sale price From $228.68 USD
    Unit price /  per 
    Sale
  • New Image Coming Soon

    ULMA HYDROPLUS w/ 465 Slotted Ductile Iron Grate - Class B

    Sale

    ULMA HYDROPLUS w/ 465 Slotted Ductile Iron Grate - Class B

    Regular price From $141.93 USD
    Regular price $179.86 USD Sale price From $141.93 USD
    Unit price /  per 
    Sale
  • IA-Inter-CB09-BF Iron Age 9" Interlaken Grate in Baked on Oil Finish Cast Iron

    Iron Age IA-INTER-CB09-BF Class B Interlaken Cast Iron 9" x 9" Grate - BoOF

    Iron Age IA-INTER-CB09-BF Class B Interlaken Cast Iron 9" x 9" Grate - BoOF

    Regular price $270.27 USD
    Regular price Sale price $270.27 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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