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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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    • Popular Manufacturers
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    • Popular Drainage Systems
      • Dura Slope
      • FP1200
      • Mini Channel
      • Polycast 600/700
      • Slim Channel
      • SS600
      • ULMA U100K(X)
      • All Drainage Systems
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  • M100K-GP100KCA Galvanized perforated grate polymer concrete galv edge ULMA channel

    ULMA M100K W/Galv. Steel Perforated Grate (1M)

    ULMA M100K W/Galv. Steel Perforated Grate (1M)

    Regular price From $232.22 USD
    Regular price Sale price From $232.22 USD
    Unit price /  per 
  • M100K-GN100KCA Galv Slotted Grate polymer concrete shallow galv edge ULMA channel

    ULMA M100K W/ Slotted Galvanized Steel Grate (1M)

    ULMA M100K W/ Slotted Galvanized Steel Grate (1M)

    Regular price From $244.23 USD
    Regular price Sale price From $244.23 USD
    Unit price /  per 
  • HYDROPLUS with Iron Age Oblio Raw Cast Iron

    ULMA HYDROPLUS with Iron Age OA5-20I21 / IA-OBLIO-0520 Oblio Raw Cast Iron Grate Class B

    ULMA HYDROPLUS with Iron Age OA5-20I21 / IA-OBLIO-0520 Oblio Raw Cast Iron Grate Class B

    Regular price From $451.48 USD
    Regular price Sale price From $451.48 USD
    Unit price /  per 
  • ULMA HYDROPLUS - Que Raw Finish Grate

    ULMA HYDROPLUS with Iron Age QUA5-20I21HP / IA-QUE-0520 Que Raw Cast Iron Grate Class B

    ULMA HYDROPLUS with Iron Age QUA5-20I21HP / IA-QUE-0520 Que Raw Cast Iron Grate Class B

    Regular price From $451.48 USD
    Regular price Sale price From $451.48 USD
    Unit price /  per 
  • Z884-P4-PG ZURN Z884 with Galv Perf Class A

    ZURN Z884 Drainage Kit w/ P4-PS Stainless Steel Perforated Grate - Bottom Outlet

    ZURN Z884 Drainage Kit w/ P4-PS Stainless Steel Perforated Grate - Bottom Outlet

    Regular price From $548.43 USD
    Regular price Sale price From $548.43 USD
    Unit price /  per 
  • ZURN Z884 Drainage Kit w/ P4-FS Stainless Steel Slotted Grate - Vandal Proof Locks & Bottom Outlet

    ZURN Z884 Drainage Kit w/ P4-FS Stainless Steel Slotted Grate - Vandal Proof Locks & Bottom Outlet

    ZURN Z884 Drainage Kit w/ P4-FS Stainless Steel Slotted Grate - Vandal Proof Locks & Bottom Outlet

    Regular price From $596.38 USD
    Regular price Sale price From $596.38 USD
    Unit price /  per 
  • Z884-P4-PG ZURN Z884 with Galv Perf Class A

    ZURN Z884 Drainage Kit w/ P4-PS Stainless Steel Perforated Grate - Vandal Proof Locks & Bottom Outlet

    ZURN Z884 Drainage Kit w/ P4-PS Stainless Steel Perforated Grate - Vandal Proof Locks & Bottom Outlet

    Regular price From $596.38 USD
    Regular price Sale price From $596.38 USD
    Unit price /  per 
  • ULMA HYDRO PLUS with IA-RIV-0520 Iron Age River Rock Grate-Class B

    ULMA HYDROPLUS with Iron Age IA-RIV-0520 River Rock - RAW

    ULMA HYDROPLUS with Iron Age IA-RIV-0520 River Rock - RAW

    Regular price From $451.48 USD
    Regular price Sale price From $451.48 USD
    Unit price /  per 
  • ULMA HYDROPLUS w/ CATHEDRAL Ductile Iron Grate - Class C

    ULMA HYDROPLUS w/ CATHEDRAL Ductile Iron Grate - Class C

    ULMA HYDROPLUS w/ CATHEDRAL Ductile Iron Grate - Class C

    Regular price From $291.86 USD
    Regular price Sale price From $291.86 USD
    Unit price /  per 
  • ULMA HYDROPLUS w/ PED Ductile Iron Grate - Class C

    ULMA HYDROPLUS w/ PED Ductile Iron Grate - Class C

    ULMA HYDROPLUS w/ PED Ductile Iron Grate - Class C

    Regular price From $291.86 USD
    Regular price Sale price From $291.86 USD
    Unit price /  per 
  • ZURN Z884 Drainage Kit w/ P4-FS Slotted Stainless Steel Class A Grates

    ZURN Z884 Drainage Kit w/ P4-FS Slotted Stainless Steel Class A Grates

    ZURN Z884 Drainage Kit w/ P4-FS Slotted Stainless Steel Class A Grates

    Regular price From $522.03 USD
    Regular price Sale price From $522.03 USD
    Unit price /  per 
  • NDS500S-BA-LUNA-B NDS Mini Channel Bronze Age Brushed Bronze Luna Grate

    NDS 3" Sand Mini Channel Kit with TDS Bronze Age Luna Grate - Natural

    NDS 3" Sand Mini Channel Kit with TDS Bronze Age Luna Grate - Natural

    Regular price From $471.47 USD
    Regular price Sale price From $471.47 USD
    Unit price /  per 
  • ZURN Z884 Drainage Kit w/ P4-FS Slotted Stainless Steel Grates - Bottom Outlet

    ZURN Z884 Drainage Kit w/ P4-FS Slotted Stainless Steel Grates - Bottom Outlet

    ZURN Z884 Drainage Kit w/ P4-FS Slotted Stainless Steel Grates - Bottom Outlet

    Regular price From $548.43 USD
    Regular price Sale price From $548.43 USD
    Unit price /  per 
  • NDS-Spee-D-BA-Foam SS grate

    NDS Spee-D® Channel w/ BA-FOAM-0448-S Stainless Steel 4"x48" Foam Grate

    NDS Spee-D® Channel w/ BA-FOAM-0448-S Stainless Steel 4"x48" Foam Grate

    Regular price From $246.46 USD
    Regular price Sale price From $246.46 USD
    Unit price /  per 
  • FGK-HLC-EZ-08 Fiberglass Mesh Grate with EZ Frame

    8" Fiberglass Kit w/ HLC Grate and EZ Frame - Load Class C

    8" Fiberglass Kit w/ HLC Grate and EZ Frame - Load Class C

    Regular price From $527.51 USD
    Regular price Sale price From $527.51 USD
    Unit price /  per 
  • Natural Bronze Pedreda Grates-Grey Mini Channel

    NDS 3" Gray Mini Channel Kit with TDS Bronze Age Pedreda Grate - Natural

    NDS 3" Gray Mini Channel Kit with TDS Bronze Age Pedreda Grate - Natural

    Regular price From $465.44 USD
    Regular price Sale price From $465.44 USD
    Unit price /  per 
  • M100K-GN100KCC Reinforced Galvanized Steel grate polymer concrete galv edge ULMA channel

    ULMA M100K Rein. Galv. Steel Slotted Grate (1M)

    ULMA M100K Rein. Galv. Steel Slotted Grate (1M)

    Regular price From $285.13 USD
    Regular price Sale price From $285.13 USD
    Unit price /  per 
  • NDS500-BA-STAR Bronze Age Natural Bronze Star Grate

    NDS 3" Gray Mini Channel Kit with TDS Bronze Age Star Grate - Natural

    NDS 3" Gray Mini Channel Kit with TDS Bronze Age Star Grate - Natural

    Regular price From $465.44 USD
    Regular price Sale price From $465.44 USD
    Unit price /  per 
  • MCK-BA-FOAM-0336 Grey NDS Mini Channel with Stainless Steel Perforated Foam Grate

    NDS 3" Gray Mini Channel Kit w/ TDS Perforated Foam Heel Proof Grate - 316 Stainless

    NDS 3" Gray Mini Channel Kit w/ TDS Perforated Foam Heel Proof Grate - 316 Stainless

    Regular price From $306.44 USD
    Regular price Sale price From $306.44 USD
    Unit price /  per 
  • New Image Coming Soon

    ULMA HYDROPLUS w/ WAVE Ductile Iron Grate - Class C

    ULMA HYDROPLUS w/ WAVE Ductile Iron Grate - Class C

    Regular price From $291.86 USD
    Regular price Sale price From $291.86 USD
    Unit price /  per 
  • ULMA HYDROPLUS w/ LUNA Ductile Iron Grate - Class C

    ULMA HYDROPLUS w/ LUNA Ductile Iron Grate - Class C

    ULMA HYDROPLUS w/ LUNA Ductile Iron Grate - Class C

    Regular price From $291.86 USD
    Regular price Sale price From $291.86 USD
    Unit price /  per 
  • FGK-T1215-EZ-15 Fiberglass T-Bar grate with EZ frame

    15" Fiberglass Kit w/ T-Bar T1215 Grate and EZ Frame - Load Class A

    15" Fiberglass Kit w/ T-Bar T1215 Grate and EZ Frame - Load Class A

    Regular price From $542.74 USD
    Regular price Sale price From $542.74 USD
    Unit price /  per 
  • Hydro Plus with 450 SS Slotted 1M Grate Class A

    ULMA HYDROPLUS with 450 / IN100KCA Stainless Steel Slotted Grate Class A

    ULMA HYDROPLUS with 450 / IN100KCA Stainless Steel Slotted Grate Class A

    Regular price From $229.33 USD
    Regular price Sale price From $229.33 USD
    Unit price /  per 
  • ULMA HYDRO PLUS with IA-JOE-0520-BF Iron Age Regular Joe BoOF Grate Class B

    ULMA HYDROPLUS with Iron Age RJA5-20I21 / IA-JOE-0520 Regular Joe Raw Cast Iron Grate Class B

    ULMA HYDROPLUS with Iron Age RJA5-20I21 / IA-JOE-0520 Regular Joe Raw Cast Iron Grate Class B

    Regular price From $442.30 USD
    Regular price Sale price From $442.30 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 HYDROPLUS Mini w/ BARS Ductile Iron Grate Class C

    ULMA HYDROPLUS Mini w/ BARS Ductile Iron Grate Class C

    $237.16 $183.00
  • ULMA HYDROPLUS Mini w/ FERN Ductile Iron Grate Class C

    ULMA HYDROPLUS Mini w/ FERN Ductile Iron Grate Class C

    $237.16 $183.00
  • ULMA HYDROPLUS Mini w/ CATHEDRAL Ductile Iron Grate Class C

    ULMA HYDROPLUS Mini w/ CATHEDRAL Ductile Iron Grate Class C

    $237.16 $183.00
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