NDS DS-670 - Dura-Slope Plastic Perforated Channel Grate - Gray Valve Boxes Channel placement: Start at the

Channel placement: Start at the lowest point of the drainage run

Load Class: Class B (61 to 175 PSI)

Backfill around the box with soil

High-density polyethylene (HDPE) construction

Outlet size: 4-inch diameter

NDS DS-670 - Dura-Slope Plastic Perforated Channel Grate - Gray Valve Boxes Channel placement: Start at theNDS DS 670 Dura Slope Plastic Perforated Channel Grate Gray The NDS DS 670 is a high quality, 2 foot perforated channel grate designed for efficient water drainage in residential and light commercial applications. Made from durable gray polyolefin, this grate offers excellent resistance to UV radiation, chemicals, and impact. Its perforated design allows for maximum water intake while preventing debris from entering the drainage system. Key Features: