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Collection: Polymer Concrete Channels

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ABT (1 products)
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TDS (Trench Drain Systems) (224 products)

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798 products

ULMA 421 / GN100KCAM Class A Slotted Galvanized Steel 122mm x 500mm Grate

ULMA 421 / GN100KCAM Class A Slotted Galvanized Steel 122mm x 500mm Grate

Regular price $27.49 USD

Regular price Sale price $27.49 USD
Unit price per
ULMA 425 / GN100KCCM Class C Slotted Reinforced Galvanized Steel 122mm x 500mm Grate

ULMA 425 / GN100KCCM Class C Slotted Reinforced Galvanized Steel 122mm x 500mm Grate

Regular price $51.16 USD

Regular price Sale price $51.16 USD
Unit price per
POLYCAST FG0644SPH Class C Spacing 3/8" Fiberglass BAR 6" x 24" Grate

POLYCAST FG0644SPH Class C Spacing 3/8" Fiberglass BAR 6" x 24" Grate

Regular price $157.50 USD

Regular price Sale price $157.50 USD
Unit price per
POLYCAST DG0640H Class A Slotted Galvanized 6" x 24" Grate | Load Class B

POLYCAST DG0640H Class A Slotted Galvanized 6" x 24" Grate | Load Class B

Regular price $49.61 USD

Regular price Sale price $49.61 USD
Unit price per
TDS 486 Vinyl-Ester Fiberglass Bar 122mm x 1M Bar Grate - 0.9" on Center - Class B

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

Regular price $192.71 USD

Regular price Sale price $192.71 USD
Unit price per
TDS DG0669H Class D Stainless Steel Bar 6" x 24" Grate for POLYCAST®

TDS DG0669H Class D Stainless Steel Bar 6" x 24" Grate for POLYCAST®

Regular price $566.56 USD

Regular price Sale price $566.56 USD
Unit price per
ULMA 660 Slotted Ductile Iron 9x20 Class D Grate - MultiV+200

ULMA 660 Slotted Ductile Iron 9x20 Class D Grate - MultiV+200

Regular price $90.07 USD

Regular price Sale price $90.07 USD
Unit price per
ULMA 661 Slotted Ductile Iron 9x20 Class E Grate - MultiV+200

ULMA 661 Slotted Ductile Iron 9x20 Class E Grate - MultiV+200

Regular price $104.17 USD

Regular price Sale price $104.17 USD
Unit price per
ULMA MV+200KX w/ 658 HP Ductile Iron 9X20 Slotted Grate Class C

ULMA MV+200KX w/ 658 HP Ductile Iron 9X20 Slotted Grate Class C

Regular price From $318.53 USD

Regular price Sale price From $318.53 USD
Unit price per
ULMA MV+200KX w/ 661 Ductile Iron 9X20 Slotted Grate Class E

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

Regular price From $339.11 USD

Regular price Sale price From $339.11 USD
Unit price per
ULMA MV+200KX w/ 678 HP Ductile Iron 9X20 Slotted Grate Class E

ULMA MV+200KX w/ 678 HP Ductile Iron 9X20 Slotted Grate Class E

Regular price From $353.46 USD

Regular price Sale price From $353.46 USD
Unit price per
Iron Age IA-GRK-0520-BF Class B Greek Key Cast Iron 122mm x 500mm Grate - BoOF

Iron Age IA-GRK-0520-BF Class B Greek Key Cast Iron 122mm x 500mm Grate - BoOF

Regular price $223.08 USD

Regular price Sale price $223.08 USD
Unit price per
Iron Age IA-BAY-0520-HP-BF Class B HP Mission Bay Cast Iron 5x20 (Nominal) Grate - BoOF

Iron Age IA-BAY-0520-HP-BF Class B HP Mission Bay Cast Iron 5x20 (Nominal) Grate - BoOF

Regular price $223.08 USD

Regular price Sale price $223.08 USD
Unit price per
Iron Age IA-OBLIO-0520-BF Class B OBLIO Cast Iron 122mm x 500mm Grate - BoOF

Iron Age IA-OBLIO-0520-BF Class B OBLIO Cast Iron 122mm x 500mm Grate - BoOF

Regular price $223.08 USD

Regular price Sale price $223.08 USD
Unit price per
ULMA MV+200K w/ 658 HP Ductile Iron 9X20 Slotted Grate Class C

ULMA MV+200K w/ 658 HP Ductile Iron 9X20 Slotted Grate Class C

Regular price From $240.23 USD

Regular price Sale price From $240.23 USD
Unit price per
ULMA MV+200K w/ 660 Ductile Iron 9X20 Slotted Grate Class D

ULMA MV+200K w/ 660 Ductile Iron 9X20 Slotted Grate Class D

Regular price From $247.39 USD

Regular price Sale price From $247.39 USD
Unit price per
Iron Age IA-QUE-0520-HP-BF Class B Heel-Proof Cast Iron 122mm x 500mm Grate - BoOF

Iron Age IA-QUE-0520-HP-BF Class B Heel-Proof Cast Iron 122mm x 500mm Grate - BoOF

Regular price $223.08 USD

Regular price Sale price $223.08 USD
Unit price per
POLYCAST DP0753SB Solid Bottom Catch Basin 24" x 24" with 700 Series Frame

POLYCAST DP0753SB Solid Bottom Catch Basin 24" x 24" with 700 Series Frame

Regular price $1,288.26 USD

Regular price Sale price $1,288.26 USD
Unit price per
Iron Age IA-INTER-0520-BF Class B Interlaken Cast Iron 122mm x 500mm Grates - BoOF

Iron Age IA-INTER-0520-BF Class B Interlaken Cast Iron 122mm x 500mm Grates - BoOF

Regular price $223.08 USD

Regular price Sale price $223.08 USD
Unit price per
Iron Age IA-CARB-0520-BF Class B Carbochon Cast Iron 122mm x 500mm Grates - BoOF

Iron Age IA-CARB-0520-BF Class B Carbochon Cast Iron 122mm x 500mm Grates - BoOF

Regular price $223.08 USD

Regular price Sale price $223.08 USD
Unit price per

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Resources

Shipping / Returns

Determining Your Grate Size

Load Class Chart

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

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