2 ductile iron grates with screws
NDS iron grates are lightly painted black for shipping and storage purposes only to inhibit rust formation
They both provide a high level of corrosion and rot resistance in above and below ground installations
and can be easily cut to 4 in
water flow and is even effective at keeping dogs from digging out underneath a fence
Dura Slope® Channel Drain, 8.4 in. Invert Depth, Neutral, 6 in. Wide X 4 ft. Long X 10.1 in. Deep Sheet Drain 2 ductile iron grates withCapture and convey surface runoff from driveways, parking lots, and other impervious surface areas with the Dura Slope Channel Drain. This channel drain section is neutral (no slope), 8. 37 in. deep, and made of high density polyethylene (HDPE) containing UV inhibitors. Channel comes with recyclable blank grate inserts to protect the channel from debris during installation, eliminating the need for using plywood. A durable alternative to concrete