Orenco® Riser Safety Grates rest on the flange at the bottom of an
access riser to help prevent people or tools from falling into a tank.
They are also used to prevent soil buildup in the bottoms of valve
boxes. Orenco Riser Safety Grates are sized to fit Ultra-Rib™, Perma-
Loc™, Kor-Flo™, and equivalent risers.