NDS® Mini Channel slotted plastic grates are UV-protected High-Density Polyethylene (HDPE). Slotted plastic grates are chemically resistant, rustproof, and low-maintenance. Commonly referred to as a 3" system, the grates are nominally 2.75" and have an open surface area of 9.90 square inches (30.29 GPM) per foot.
Four screw holes per grate for NDS529 fasteners (not included).
Actual Dimensions: 2.75" W x 36" L x .25" H
Grates are made in the USA
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