18" Grate to Fit 18" Smooth Wall Corrugated Plastic Pipe

Grate lid is fabricated from ⅜" A-36 carbon steel, with ⅜" A-36 carbon steel reinforcing bar and ¼" A-36 carbon steel ring. Finished with one coat of primer and one coat of gloss black paint.

Dimensions:

• 21" O.D. grate lid with 17 ½" O.D. X 1 ½" wide ring to fit inside the inner diameter of the pipe.
• 1" wide slots with 1" solid steel web between the slots.
• The center steel web is ¾" wide and reinforced by a ⅜" thick steel bar.