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      • All Drainage Systems
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  • TDS-BARS-0312-A Aluminum Bronze Age Bars Grate

    Bronze Age™ BA-BARS-0312-A Bars Aluminum 3" x 12" Grate

    Bronze Age™ BA-BARS-0312-A Bars Aluminum 3" x 12" Grate

    Regular price $91.00 USD
    Regular price Sale price $91.00 USD
    Unit price /  per 
  • BA-STAR-0312-B Stars Bronze Age - Brushed Bronze Grate

    Bronze Age BA-STAR-0312-B Stars Bronze Brushed 3" x 12" Grate

    Bronze Age BA-STAR-0312-B Stars Bronze Brushed 3" x 12" Grate

    Regular price $152.50 USD
    Regular price Sale price $152.50 USD
    Unit price /  per 
  • NDS270-2inch-atrium-grate-grey

    NDS 270 Atrium HDPE 2" Dia. Grate

    NDS 270 Atrium HDPE 2" Dia. Grate

    Regular price $11.59 USD
    Regular price Sale price $11.59 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

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

    Regular price From $159.97 USD
    Regular price Sale price From $159.97 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 $183.00 USD
    Regular price $237.16 USD Sale price From $183.00 USD
    Unit price /  per 
    Sale
  • ULMA HydroMini Plus with 402 Galvanized Mesh Grate load class B

    ULMA HYDROPLUS Mini with Galvanized Mesh Grate (402 / GEX100KCB) Class B

    ULMA HYDROPLUS Mini with Galvanized Mesh Grate (402 / GEX100KCB) Class B

    Regular price From $154.19 USD
    Regular price Sale price From $154.19 USD
    Unit price /  per 
  • Hydro Mini Plus with 450 SS Slotted Grate Class A_1 Meter

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

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

    Regular price From $176.04 USD
    Regular price Sale price From $176.04 USD
    Unit price /  per 
  • Iron Age | Class B | Heel-Proof Rain Cast Iron 3" x 12" Grate | BoOF

    Iron Age | Class B | Heel-Proof Rain Cast Iron 3" x 12" Grate | BoOF

    Iron Age | Class B | Heel-Proof Rain Cast Iron 3" x 12" Grate | BoOF

    Regular price $108.68 USD
    Regular price Sale price $108.68 USD
    Unit price /  per 
  • ULMA Hydro Mini Plus with ULMA 494 ADA Heel proof Polypropylene Black Grate Class A

    ULMA HYDROPLUS Mini with 494/PNH100KCAM Slotted HP Grate Class A

    ULMA HYDROPLUS Mini with 494/PNH100KCAM Slotted HP Grate Class A

    Regular price From $117.62 USD
    Regular price Sale price From $117.62 USD
    Unit price /  per 
  • ULMA Hydro Mini Plus with 462G Gatic Grate Class D

    ULMA HYDROPLUS Mini with Ductile Iron Slotted Grate (462G)

    ULMA HYDROPLUS Mini with Ductile Iron Slotted Grate (462G)

    Regular price From $147.35 USD
    Regular price Sale price From $147.35 USD
    Unit price /  per 
  • BA-SLOT-0336 Stainless Steel Slot 3x36

    Bronze Age™ TDS-SLOT-0312-L Slotted 316L Stainless Steel 3″x12″ Grate

    Bronze Age™ TDS-SLOT-0312-L Slotted 316L Stainless Steel 3″x12″ Grate

    Regular price $83.00 USD
    Regular price Sale price $83.00 USD
    Unit price /  per 
  • Hydro Mini Plus with 436 SS Wedge Wire Class A_1 Meter

    ULMA HYDROPLUS Mini w/ Stainless Steel ADA/Heelproof Wedge Wire Grate (436) Class B

    ULMA HYDROPLUS Mini w/ Stainless Steel ADA/Heelproof Wedge Wire Grate (436) Class B

    Regular price From $530.45 USD
    Regular price Sale price From $530.45 USD
    Unit price /  per 
  • ULMA HYDROPLUS Mini w/ 465 Ductile Iron Grate Class B

    ULMA HYDROPLUS Mini w/ 465 Ductile Iron Grate Class B

    ULMA HYDROPLUS Mini w/ 465 Ductile Iron Grate Class B

    Regular price From $125.16 USD
    Regular price Sale price From $125.16 USD
    Unit price /  per 
  • ULMA HYDROPLUS Mini w/ FERN Ductile Iron Grate Class C

    ULMA HYDROPLUS Mini w/ FERN Ductile Iron Grate Class C

    Sale

    ULMA HYDROPLUS Mini w/ FERN Ductile Iron Grate Class C

    Regular price From $183.00 USD
    Regular price $237.16 USD Sale price From $183.00 USD
    Unit price /  per 
    Sale
  • ULMA Hydro Mini Plus H80 with ULMA 410 Galvanized Steel erforated Grate Class A

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

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

    Regular price From $78.00 USD
    Regular price Sale price From $78.00 USD
    Unit price /  per 
  • BA-PED-0312 Bronze Natural Mini Channel Pedreda Grate

    Bronze Age BA-PED-0312 Class A Pedreda Bronze Natural Finish 3" x 12" Grate

    Bronze Age BA-PED-0312 Class A Pedreda Bronze Natural Finish 3" x 12" Grate

    Regular price $136.00 USD
    Regular price Sale price $136.00 USD
    Unit price /  per 
  • BA-STAR-0312-A Stars Bronze Age Aluminum Grate

    Bronze Age™ BA-STAR-0312-A Stars Aluminum 3" x 12" Grate

    Bronze Age™ BA-STAR-0312-A Stars Aluminum 3" x 12" Grate

    Regular price $91.00 USD
    Regular price Sale price $91.00 USD
    Unit price /  per 
  • ULMA Hydro Mini Plus with 406 Heelproof Galvanized Mesh Grate load class B

    ULMA HYDROPLUS Mini with Galvanized Mesh Heelproof Grate (406 / GEHX100KCB) Class B

    ULMA HYDROPLUS Mini with Galvanized Mesh Heelproof Grate (406 / GEHX100KCB) Class B

    Regular price From $204.14 USD
    Regular price Sale price From $204.14 USD
    Unit price /  per 
  • TDS-BARS-0312 Natural Bronze Age Grates Transverse Slotted Grate

    Bronze Age BA-BARS-0312 Bars Bronze Natural 3" x 12" Grate

    Bronze Age BA-BARS-0312 Bars Bronze Natural 3" x 12" Grate

    Regular price $136.00 USD
    Regular price Sale price $136.00 USD
    Unit price /  per 
  • Stainless Steel Perforated 3 inch Mini Channel Grate

    Perforated 304 Stainless Steel Grate 3″x12″ Load Class B

    Perforated 304 Stainless Steel Grate 3″x12″ Load Class B

    Regular price $51.00 USD
    Regular price Sale price $51.00 USD
    Unit price /  per 
  • ULMA HYDROPLUS Mini w/ LUNA Ductile Iron Grate Class C

    ULMA HYDROPLUS Mini w/ LUNA Ductile Iron Grate Class C

    Sale

    ULMA HYDROPLUS Mini w/ LUNA Ductile Iron Grate Class C

    Regular price From $183.00 USD
    Regular price $237.16 USD Sale price From $183.00 USD
    Unit price /  per 
    Sale
  • 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

    ULMA HYDROPLUS Mini with 486 Fiberglass Grate - Load Class B

    Regular price From $322.81 USD
    Regular price Sale price From $322.81 USD
    Unit price /  per 
  • BA-SLOT-0312-BF TDS Bronze Age Slotted Ductile Iron Grate with BoOF

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

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

    Regular price From $653.98 USD
    Regular price Sale price From $653.98 USD
    Unit price /  per 
  • ULMA HYDROPLUS MINI with 438 Grate-Stainless Steel Wedge Wire

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

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

    Regular price From $658.32 USD
    Regular price Sale price From $658.32 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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