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Collection: 9” - 12” Grates

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232 products

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D & L Foundry (3 products)
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NDS (136 products)
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Hubbell - POLYCAST (9 products)
ULMA (17 products)
USF (2 products)
TDS (Trench Drain Systems) (52 products)
Zurn (7 products)

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900 Series (45 products)
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MultiV+200D (9 products)
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Point Drain (8 products)
POLYCAST 500 (4 products)
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POLYCAST 900 (3 products)
Pro Series 12 (2 products)
Z882 (4 products)
Z886 (3 products)

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9.0" x 9.0" for NDS 900 Series (47 products)
9.00" (23 products)
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10.66" for TDS FP/FF/FE 0800 (8 products)
10.75" (3 products)
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12.0" x 12.0" for NDS 1200 Series (107 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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1.125" (137 products)
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1.50" (55 products)
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232 products

NDS 9" Catch Basin Kit with NDS Slotted Grate | Sand

NDS 9" Catch Basin Kit with NDS Slotted Grate | Sand

Regular price From $105.27 USD

Regular price Sale price From $105.27 USD
Unit price per
NDS 900 Series 2 Opening Catch Basin 9" x 9"

NDS 900 Series 2 Opening Catch Basin 9" x 9"

Regular price $34.50 USD

Regular price Sale price $34.50 USD
Unit price per
NDS 900-4 Series 4 Opening Catch Basin 9″ x 9″

NDS 900-4 Series 4 Opening Catch Basin 9″ x 9″

Regular price $46.27 USD

Regular price Sale price $46.27 USD
Unit price per
NDS 9" Catch Basin Kit with Iron Age Interlaken Grate | Natural

NDS 9" Catch Basin Kit with Iron Age Interlaken Grate | Natural

Regular price From $253.20 USD

Regular price Sale price From $253.20 USD
Unit price per
NDS 9" Low Profile Catch Basin Kit with NDS Slotted Grate | Black

NDS 9" Low Profile Catch Basin Kit with NDS Slotted Grate | Black

Regular price From $93.68 USD

Regular price Sale price From $93.68 USD
Unit price per
NDS 9" Low Profile Catch Basin Kit with NDS Atrium Grate | Black

NDS 9" Low Profile Catch Basin Kit with NDS Atrium Grate | Black

Regular price From $113.67 USD

Regular price Sale price From $113.67 USD
Unit price per
NDS 970 Class A ADA Compliant Slotted HDPE 9" x 9" Grate - BLACK

NDS 970 Class A ADA Compliant Slotted HDPE 9" x 9" Grate - BLACK

Regular price $27.75 USD

Regular price Sale price $27.75 USD
Unit price per
10" Fiberglass Kit w/ Micro Mesh ADA Compliant Grate and EZ Frame - Load Class A

10" Fiberglass Kit w/ Micro Mesh ADA Compliant Grate and EZ Frame - Load Class A

Regular price From $518.99 USD

Regular price Sale price From $518.99 USD
Unit price per
NDS 1245 Universal Offset Adapter 3"-4" Outlet

NDS 1245 Universal Offset Adapter 3"-4" Outlet

Regular price $10.49 USD

Regular price Sale price $10.49 USD
Unit price per
NDS 930 Low Profile Adapter 9" x 9"

NDS 930 Low Profile Adapter 9" x 9"

Regular price $35.82 USD

Regular price Sale price $35.82 USD
Unit price per
NDS 900FF Filter for NDS 900 Series Catch Basin

NDS 900FF Filter for NDS 900 Series Catch Basin

Regular price $36.26 USD

Regular price Sale price $36.26 USD
Unit price per
Iron Age IA-INTER-CB09 Class B Interlaken Cast Iron 9" x 9" Grate - RAW

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

Regular price $194.48 USD

Regular price Sale price $194.48 USD
Unit price per
NDS 915 Class C HD Bar Galvanized 9" x 9" Grate

NDS 915 Class C HD Bar Galvanized 9" x 9" Grate

Regular price $87.54 USD

Regular price Sale price $87.54 USD
Unit price per
NDS 999S Class A ADA Compliant Slotted HDPE 9" x 9" Grate - SAND

NDS 999S Class A ADA Compliant Slotted HDPE 9" x 9" Grate - SAND

Regular price $44.54 USD

Regular price Sale price $44.54 USD
Unit price per
NDS 980 Class A ADA Compliant Slotted HDPE 9" x 9" Grate - BLACK

NDS 980 Class A ADA Compliant Slotted HDPE 9" x 9" Grate - BLACK

Regular price $40.64 USD

Regular price Sale price $40.64 USD
Unit price per
NDS 990 Class A ADA Compliant Slotted HDPE 9" x 9" Grate - GREEN

NDS 990 Class A ADA Compliant Slotted HDPE 9" x 9" Grate - GREEN

Regular price $44.56 USD

Regular price Sale price $44.56 USD
Unit price per
Iron Age IA-SUN-CB12 Class B Sun Cast Iron 12" x 12" Grate - Natural

Iron Age IA-SUN-CB12 Class B Sun Cast Iron 12" x 12" Grate - Natural

Regular price $221.65 USD

Regular price Sale price $221.65 USD
Unit price per
Iron Age IA-OBLIO-CB12-HP Class B Heel-Proof Oblio Cast Iron 12" x 12" Grate - RAW

Iron Age IA-OBLIO-CB12-HP Class B Heel-Proof Oblio Cast Iron 12" x 12" Grate - RAW

Regular price $221.65 USD

Regular price Sale price $221.65 USD
Unit price per
NDS 1224GR Class B ADA Compliant Wave HDPE 12" x 12" Grate - GREEN

NDS 1224GR Class B ADA Compliant Wave HDPE 12" x 12" Grate - GREEN

Regular price $90.92 USD

Regular price Sale price $90.92 USD
Unit price per
NDS 1224GY Class B ADA Compliant Wave HDPE 12" x 12" Grate - GRAY

NDS 1224GY Class B ADA Compliant Wave HDPE 12" x 12" Grate - GRAY

Regular price $85.87 USD

Regular price Sale price $85.87 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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