Installing catch basins under downspouts is a best practice for managing stormwater and protecting property. Downspout drainage systems move water away from structures where it can do damage. The Downspout Defender makes a drainage system even more effective by capturing more water and deflecting debris to keep the system running clean.

Features

• Actual grate dimension 11 3/4" x 12" x 9" (7 3/4" Installed)
•  High Density Polyethylene (HDPE) Grate
•  Open surface area 54.54 square inches.
•  Flow Rate with 1/2" of head: 166.84 GPM

 Fits

• NDS 12" x 12" Catch Basin w/Two Opening (Each)
• NDS 12" x 12" Catch Basin w/Three Opening (Each)
• NDS 12" x 12" Catch Basin w/Four Opening (Each)
• NDS 12" x 12" x 6" Catch Basin Riser Extension
• NDS 12" x 12" Catch Basin 12" Riser w/2 Openings
• NDS 12" x 12" Low Profile Adapter

Ideal for yard / area drains to collect surface water while minimizing the amount of debris entering the system.

Features

• Round structural foam polyolefin grate with UV inhibitor
• Open surface area 85.6 square inches
• 112.14 GPM
• Recommended for medium-duty pneumatic tire traffic, autos and light trucks less than 20 mph with proper installation
• Load rating is based on encasing product in concrete
• Fits 15" Sewer & Drain Pipe and Fittings, 15"  Corrugated Pipe

Ideal for yard / area drains to collect surface water while minimizing the amount of debris entering the system.

Features

• Round structural foam polyolefin grate with UV inhibitor
• Open surface area 85.6 square inches
• 112.14 GPM
• Recommended for medium-duty pneumatic tire traffic, autos and light trucks less than 20 mph with proper installation
• Load rating is based on encasing product in concrete
• Fits 15" Sewer & Drain Pipe and Fittings, 15"  Corrugated Pipe

Individual grates available NDS 3" Atrium Grate

Ideal for yard / area drains to collect surface water while minimizing the amount of debris entering the system.

Features

• Flat top structural foam polyolefin atrium grate with UV inhibitor
• Open surface area 9.40 square inches
• 12.31 GPM
• Fits 3" Sewer & Drain Pipe and Fittings, 3"  Corrugated Pipe and 3" Triple Wall Pipe

Installing catch basins under downspouts is a best practice for managing stormwater and protecting property. Downspout drainage systems move water away from structures where it can do damage. The Downspout Defender makes a drainage system even more effective by capturing more water and deflecting debris to keep the system running clean.

Features

• Actual grate dimension 8 7/8"" x 9" x 6 7/16" (5 5/8" Installed)
•  High Density Polyethylene (HDPE) Grate
•  Open surface area 36.8 square inches.

Fits

• NDS 9" x 9" Catch Basin w/Two Openings (Each)
• NDS 9" x 9" Catch Basin w/Four Openings (Each)
• NDS 9" x 9" x 6" Catch Basin Riser Extension
• NDS 9" x 9" Low Profile Adapter

Individual grates available NDS 12" Botanical Square Grate

Ideal for yard / area drains to collect surface water while minimizing the amount of debris entering the system.

Features

• Actual dimension 12" x 12" x 1.52"
• Use with 12" Catch Basin Series
• Square High Density Polyethylene (HDPE) Grate
• Open surface area 24.44 square inches per sq. ft.
• 74.77 GPM per sq. ft. with 1/2" of head
• ADA Compliant
• Recommended for medium-duty pneumatic tire traffic, auto and light trucks at speeds less than 20 MPH with proper installation
• Load Class B: 61-175 psi
• Load rating is based on encasing product in concrete

Also Available: Contractor Pack of 8 grates 

Click here for box of 8 Black NDS1218_BX   

Ideal for yard / area drains to collect surface water while minimizing the amount of debris entering the system.

Features

• Actual dimension 12" x 12" x 1.52"
• Use with 12" Catch Basin Series
• Square High Density Polyethylene (HDPE) Grate
• Open surface area 24.44 square inches per sq. ft.
• 74.77 GPM per sq. ft. with 1/2" of head
• ADA Compliant
• Recommended for medium-duty pneumatic tire traffic, auto and light trucks at speeds less than 20 MPH with proper installation
• Load Class B: 61-175 psi
• Load rating is based on encasing product in concrete

Individual grates available NDS 12" Botanical Square Grate

Ideal for yard / area drains to collect surface water while minimizing the amount of debris entering the system.

Features

• Actual dimension 12" x 12" x 1.52"
• Use with 12" Catch Basin Series
• Square High Density Polyethylene (HDPE) Grate
• Open surface area 24.44 square inches per sq. ft.
• 74.77 GPM per sq. ft. with 1/2" of head
• ADA Compliant
• Recommended for medium-duty pneumatic tire traffic, auto and light trucks at speeds less than 20 MPH with proper installation
• Load Class B: 61-175 psi
• Load rating is based on encasing product in concrete

Also Available: Contractor Pack of 8 grates 

Click here for box of 8 Gray NDS1218GY_BX 

Ideal for yard / area drains to collect surface water while minimizing the amount of debris entering the system.

Features

• Actual dimension 12" x 12" x 1.52"
• Use with 12" Catch Basin Series
• Square High Density Polyethylene (HDPE) Grate
• Open surface area 24.44 square inches per sq. ft.
• 74.77 GPM per sq. ft. with 1/2" of head
• ADA Compliant
• Recommended for medium-duty pneumatic tire traffic, auto and light trucks at speeds less than 20 MPH with proper installation
• Load Class B: 61-175 psi
• Load rating is based on encasing product in concrete

Individual grates available NDS 12" Botanical Square Grate

Ideal for yard / area drains to collect surface water while minimizing the amount of debris entering the system.

Features

• Actual dimension 12" x 12" x 1.52"
• Use with 12" Catch Basin Series
• Square High Density Polyethylene (HDPE) Grate
• Open surface area 24.44 square inches per sq. ft.
• 74.77 GPM per sq. ft. with 1/2" of head
• ADA Compliant
• Recommended for medium-duty pneumatic tire traffic, auto and light trucks at speeds less than 20 MPH with proper installation
• Load Class B: 61-175 psi
• Load rating is based on encasing product in concrete

Also Available: Contractor Pack of 8 grates 

Click here for box of 8 Green NDS1218GR_BX 

Ideal for yard / area drains to collect surface water while minimizing the amount of debris entering the system.

Features

• Actual dimension 12" x 12" x 1.52"
• Use with 12" Catch Basin Series
• Square High Density Polyethylene (HDPE) Grate
• Open surface area 24.44 square inches per sq. ft.
• 74.77 GPM per sq. ft. with 1/2" of head
• ADA Compliant
• Recommended for medium-duty pneumatic tire traffic, auto and light trucks at speeds less than 20 MPH with proper installation
• Load Class B: 61-175 psi
• Load rating is based on encasing product in concrete

Individual grates available NDS 12" Botanical Square Grate

Ideal for yard / area drains to collect surface water while minimizing the amount of debris entering the system.

Features

• Actual dimension 12" x 12" x 1.52"
• Use with 12" Catch Basin Series
• Square High Density Polyethylene (HDPE) Grate
• Open surface area 24.44 square inches per sq. ft.
• 74.77 GPM per sq. ft. with 1/2" of head
• ADA Compliant
• Recommended for medium-duty pneumatic tire traffic, auto and light trucks at speeds less than 20 MPH with proper installation
• Load Class B: 61-175 psi
• Load rating is based on encasing product in concrete