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Collection: 9” - 12” Grates

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232 products

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TDS (Trench Drain Systems) (52 products)
Zurn (7 products)

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POLYCAST 500 (4 products)
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Z886 (3 products)

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18.0" x 18.0" for NDS 1800 Series (4 products)
24.0" x 24.0" for NDS 2400 Series (4 products)

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232 products

RG-151224-AB Heavy Duty Ductile Iron Slotted 12″ x 24″ x 1.5″ Grate | TDS

RG-151224-AB Heavy Duty Ductile Iron Slotted 12″ x 24″ x 1.5″ Grate | TDS

Regular price $217.44 USD

Regular price Sale price $217.44 USD
Unit price per
J-4222-01 Heavy Duty Cast Iron 12" x 24" x 1.5" Grate | D&L Foundry

J-4222-01 Heavy Duty Cast Iron 12" x 24" x 1.5" Grate | D&L Foundry

Regular price $230.80 USD

Regular price Sale price $230.80 USD
Unit price per
J-4221-01 Heavy Duty Cast Iron 10" x 24" x 1.5" Grate | D&L Foundry

J-4221-01 Heavy Duty Cast Iron 10" x 24" x 1.5" Grate | D&L Foundry

Regular price $145.50 USD

Regular price Sale price $145.50 USD
Unit price per
Catch Basin Kit with Ductile Iron Slotted Grate 12" x 12"

Catch Basin Kit with Ductile Iron Slotted Grate 12" x 12"

Regular price From $301.21 USD

Regular price Sale price From $301.21 USD
Unit price per
NDS 9" Catch Basin Kit with Iron Age Interlaken Grate | Baked on Oil Finish

NDS 9" Catch Basin Kit with Iron Age Interlaken Grate | Baked on Oil Finish

Regular price From $317.55 USD

Regular price Sale price From $317.55 USD
Unit price per
NDS 1206 Universal Adapter Plug 6″ for NDS Catch Basins

NDS 1206 Universal Adapter Plug 6″ for NDS Catch Basins

Regular price $7.21 USD

Regular price Sale price $7.21 USD
Unit price per
NDS® 1266 Universal Locking Outlet - 6"

NDS® 1266 Universal Locking Outlet - 6"

Regular price $12.10 USD

Regular price Sale price $12.10 USD
Unit price per
POLYCAST DA0651TA Debris Basket HDPE

POLYCAST DA0651TA Debris Basket HDPE

Regular price $440.89 USD

Regular price Sale price $440.89 USD
Unit price per
6118 Heavy Duty Cast Iron 12" x 24" x 1.5" Grate

6118 Heavy Duty Cast Iron 12" x 24" x 1.5" Grate

Regular price $348.50 USD

Regular price Sale price $348.50 USD
Unit price per
US Foundry 6120 Heavy Duty Cast Iron 12″ x 24″ x 2" Grate

US Foundry 6120 Heavy Duty Cast Iron 12″ x 24″ x 2" Grate

Regular price $219.44 USD

Regular price Sale price $219.44 USD
Unit price per
NDS 1218S Class B ADA Compliant Botanical HDPE 12" x 12" Grate - SAND

NDS 1218S Class B ADA Compliant Botanical HDPE 12" x 12" Grate - SAND

Regular price $85.87 USD

Regular price Sale price $85.87 USD
Unit price per
Iron Age IA-BULL-CB12-HP Class B Heel-Proof Bullseye Cast Iron 12" x 12" Grate - Natural

Iron Age IA-BULL-CB12-HP Class B Heel-Proof Bullseye Cast Iron 12" x 12" Grate - Natural

Regular price $221.65 USD

Regular price Sale price $221.65 USD
Unit price per
NDS 932 Low Profile Adapter 9" x 9"

NDS 932 Low Profile Adapter 9" x 9"

Regular price $58.21 USD

Regular price Sale price $58.21 USD
Unit price per
NDS 9" Catch Basin Kit with NDS Slotted Grate | Ductile Iron

NDS 9" Catch Basin Kit with NDS Slotted Grate | Ductile Iron

Regular price From $220.29 USD

Regular price Sale price From $220.29 USD
Unit price per
Iron Age IA-SUN-CB12-BF Class B Sun Cast Iron 12" x 12" Grate - Baked on Oil Finish

Iron Age IA-SUN-CB12-BF Class B Sun Cast Iron 12" x 12" Grate - Baked on Oil Finish

Regular price $297.44 USD

Regular price Sale price $297.44 USD
Unit price per
NDS 1216 Catch Basin Riser for 12 x 12 NDS Catch Basin

NDS 1216 Catch Basin Riser for 12 x 12 NDS Catch Basin

Regular price $39.77 USD

Regular price Sale price $39.77 USD
Unit price per
NDS 885 Class C Slotted Cast Iron 12" x 20" Grate

NDS 885 Class C Slotted Cast Iron 12" x 20" Grate

Regular price $357.55 USD

Regular price Sale price $357.55 USD
Unit price per
FG-MESH-1248 Mesh Fiberglass 12"X48"x1.5" Grate Load Class C

FG-MESH-1248 Mesh Fiberglass 12"X48"x1.5" Grate Load Class C

Regular price $291.96 USD

Regular price Sale price $291.96 USD
Unit price per
6903M2 Heavy Duty Cast Iron 12″ x 24″ x 2" Grate

6903M2 Heavy Duty Cast Iron 12″ x 24″ x 2" Grate

Regular price $295.60 USD

Regular price Sale price $295.60 USD
Unit price per
P882-E1-NS End Cap for Zurn Z882 12" Wide Drain

P882-E1-NS End Cap for Zurn Z882 12" Wide Drain

Regular price $85.60 USD

Regular price Sale price $85.60 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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