Toggle Nav

Menu

Professionals
Professionals
Residential

Commercial

Industrial

Government

Parks & Recreation

DOT

Mining

Plumbing

Residential Solutions

High quality and easy to install solutions for single-family homes.

Learn More

Commercial Solutions

Scalable and flexible commercial solutions for office buildings, banks, grocery stores and more.

Learn More

Industrial Solutions

Scalable and heavy-duty solutions for industrial and manufacturing sites.

Learn More

Government and Public Solutions

Scalable and flexible solutions for public sites including government buildings, schools, parks and more.

Learn More

Parks & Recreation Solutions

Scalable and aesthetic solutions for parks, recreation areas, golf courses and sports fields.

Learn More

DOT Solutions

Durable and heavy duty solutions for highways and roads.

Learn More

Mining Solutions

An easy to install, corrosion-proof solution for today’s mining irrigation line sprinkler connections.

Learn More

Plumbing Solutions

Durable material, innovative design, the first FM approved and pressure rated clamp in the industry

Learn More
Submit Your Design
Let NDS evaluate and help you with preparation of your submittal drawings and specs.

Request a Quote
We won't let you do this alone; Project Specialists are with you every step of the way!
Homeowners
Homeowners
Home Drainage Center

Irrigation

Flow Management

Home Drainage Center

Standing water in your basement, driveway or yard? NDS quickly identifies drainage problems and selects the right solution to resolve issues at home.

Home Drainage Center

Water on Patio/Pool/Deck

Water in Planter

Water on Driveway

Water in Basement

Water in Walkway

Neighbor Runoff

Downspout Runoff

Water in Yard

Visit the Home Drainage Center

Irrigation

Our systems are engineered for versatility, so a system that starts with a kit can be easily expanded as landscaping and watering needs change. By manufacturing parts with fewer pieces, we keep installation simple, with little opportunity for mistakes.

Learn More about Raindrip

Flow Management

With our Flow Management line, we offer a range of specialty fittings for the irrigation and pool & spa industries. Our product offering includes expansion repair couplings, spring, swing check and ball valves, and compression couplings.

Learn More
Ask Dr. Drainage
Want to know more? Our resident civil engineer, Doctor Drainage, is available to assist you with all your project needs.

Call Technical Services
Dial 888-825-4716 for system solutions and product support.
Products
Products
Drainage

Permeable Pavers

Root Barriers

Irrigation

Valve & Meter Boxes

Flow Management

StormChamber® Systems

Drainage

From your backyard patio to the neighborhood aquatic center, from the factory floor to a professional sports facility, NDS offers superior quality drainage solutions for every environment.

Learn More

Drainage

Channel & Trench Drains

NDS French Drain Systems

Catch Basins

Dry Well Drainage Systems and Kits

Grates

NDS Pop-up Drain Emitters

More from NDS

Home Drainage Center

Tools and Calculators

Video Library

Permeable Pavers

Offering a sustainable alternative to traditional paving methods, NDS permeable pavers look identical to regular turf or gravel, but can support anything from a firetruck to daily vehicle parking.

Learn More

Permeable Pavers

Tufftrack™ Grass Pavers

EZ-Roll Gravel Pavers

EZ-Roll Grass Pavers

NDS Honor Roll Cemetery Pavers

EZ Marker Grass & Gravel Parking Delineators

More from NDS

Home Drainage Center

Tools and Calculators

Video Library

Root Barriers

Preventing costly damage to sidewalks, hardscapes and foundations, NDS root barrier products help protect homeowners and communities against the high cost of reparations.

Learn More

Root Barriers

EP Series Root Barriers

Root Barrier Sheet Material

Planters

Trunk Protector

More from NDS

Home Drainage Center

Tools and Calculators

Video Library

Irrigation

From point source to inline emitter tubing, fittings, valves and more, NDS offers efficient drip and micro-irrigation products that provide complete, system-oriented solutions for the green industry.

Learn More

Irrigation

Irrigation Point of Connection

Single-Outlet Devices

Multi-Outlet Devices

Dripline Irrigation Systems

Irrigation Supply Tubing

Irrigation Fittings and Accessories

More from NDS

Home Drainage Center

Tools and Calculators

Video Library

Valve & Meter Boxes

Available in a wide variety of sizes, colors and designations, all NDS boxes and lids contain UV inhibitors for sustained durability and performance in direct sunlight.

Learn More New Consolidation

Valve & Meter Boxes

Meter Boxes

Valve Boxes

More from NDS

Home Drainage Center

Tools and Calculators

Video Library

Flow Management

From expansion repair and compression couplings, to spring, swing check and ball valves, NDS offers a full line of products for irrigation, plumbing, pool and spa and industrial applications.

Learn More

Flow Management

Water Valves

Compression and Repair Couplings

Rigid Saddles

PVC Unions

Solvent Weld Fittings

Flexible Couplings

Clamps

More from NDS

Home Drainage Center

Tools and Calculators

Video Library

Storm Water Solutions

StormChamber is a stormwater systems solution that functions in all environments. Whether you’re in a residential or commercial area, stormwater systems are open bottom chamber BMPs that function in permeable and non-permeable soils with the assistance of a high-density polyethylene infiltration chamber BMP.

Learn More about StormChamber

StormChamber® Systems

StormChamber® Systems

SedimenTrap™

More from NDS

Home Drainage Center

Tools and Calculators

Video Library
Submit Your Design
Let NDS evaluate and help you with preparation of your submittal drawings and specs.

Request a Quote
We won't let you do this alone; Project Specialists are with you every step of the way!
Specifications & Support
Specifications & Support
Specifications

Literature Library

Video Library

Calculators

Case Studies

Price Books

Download Our App

Specifications

Find all the product specifications and installation instructions you need to successfully design and install any NDS water management system. Product resources can also be found on individual product pages.

NDS Literature Library

Your one-stop shop for videos, catalogs, price books, installation materials, case studies, calculators, product specs and much more! Product resources can also be found on individual product pages.

Video Library

Find helpful videos for the Professional and Do-it-Yourself-er on the NDS YouTube Channel for the Professional and Do-it-Yourself-er. NDS is a leader in sustainable stormwater management, efficient irrigation and flow management solutions for residential and commercial applications.

Calculators

Not sure how much product you need? We can help you get the estimate that will help move your project forward. Get started with one of calculators.

Case Studies

Find out where NDS is installed near you on projects just like yours!

Price Books

Click here for pricing on all of our products

Download Our App

Calculate your drainage install on-site. The new NDS app is the perfect tool for determining runoff and system requirements on the go.
Submit Your Design
Let NDS evaluate and help you with preparation of your submittal drawings and specs.

Request a Quote
We won't let you do this alone; Project Specialists are with you every step of the way!
Shop
Shop
Drainage

Channel & Trench Drains

French Drains

Catch Basins

Dry Wells

Grates

Pop-up Emitters

Drainage Fittings

StormChamber® Systems

Permeable Pavers

Tufftrack™ Grass Pavers

EZ-Roll Gravel Pavers

EZ-Roll Grass Pavers

Honor Roll Cemetery Pavers

EZ Marker Parking Delineators

Tufftrackâ„¢ Grass Pavers

TufftrackÃ¢â€žÂ¢ Grass Pavers

Root Barriers

EP Series Root Barriers

Root Barrier Sheet Material

Planters

Trunk Protector

Irrigation

Point of Connection

Single-outlet Devices

Multi-outlet Devices

Dripline

Supply Tubing

Fittings and Accessories

Raindrip DIY-ers

Valve & Meter Boxes

Meter Boxes

Valve Boxes

Flow Management

Valves

Compression and Repair Couplings

Rigid Saddles

Unions

Sprinkler Risers and Joints

Clamps
Submit Your Design
Let NDS evaluate and help you with preparation of your submittal drawings and specs.

Request a Quote
We won't let you do this alone; Project Specialists are with you every step of the way!

Account

Contact NDS

Search

Compare Products

Home
9 Square Grate, Green

9" Square Grate, Green

Description

NDS grates are a proven alternative to traditional concrete drains with UV inhibitors are used to prevent fading and cracking from the sun, chemical-resistant, rustproof and maintenance-free, lightweight and easy to install. NDS has a full line of drainage products, fittings and accessories available.

Product Details

Part number 990

General

Product type

Grates

Material

HDPE

Color

Green

Length

9

Width

9 in.

Height

1-1/8"

Weight

1.5000

Custom Attributes

ADA

Yes

Load Rating

Class A

Style

Flat

Capacity

114.69 GPM

Load More Product Details

Load Less Product Details

Catalog & Brochures

Drainage Catalog

PDF

Videos

S5 Sustainable stormwater Solutions

Watch Video

S5 Overview

Watch Video

How to Drain Water from your Landscape: NDS Area Drains

Watch Video

S5 Intro

Watch Video

How do I determine the stormwater runoff on my property?

Watch Video

Case Studies

Technical Information

Specifications Sheets: NDS Catch Basin Flow Capacities

PDF

Specifications Sheets: NDS Catch Basin Invert Table

PDF

Specifications Sheets: NDS Channel Drain Grate Flow Capacities Table

PDF

Load More Specification Details

Load Less Specification Details

Need Help with Your Project?

Find out how NDS solutions experts can help you.

Contact Us
Or call us at 888-825-4716

Case Studies

Articles & Videos

Drainage

FILCOTEN Article Header

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Aenean euismod bibendum laoreet. Proin gravida dolor sit amet lacus accumsan et viverra justo commodo. Proin sodales pulvinar tempor.

Drainage

FILCOTEN Article Header

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Aenean euismod bibendum laoreet. Proin gravida dolor sit amet lacus accumsan et viverra justo commodo. Proin sodales pulvinar tempor.

Where to buy

9" Square Grate, Green

Be the first to review this product

SKU

990

In stock

SKU

990

Find a Store Near You

Includes 1 grate (square). Green.
Dimension(s): 8-7/8" L x 8-7/8" W x 1-1/8" H.
Use with 9" x 9" Catch Basin Series.

Part of NDS 9" Catch Basin Series.