6", Sand, Round, Overlapping Valve Box Cover, Identified With Irrigation Control Valve Designation Unless Otherwise Specified, Overlapping Cover Prevents Dirt & Grass From Settling Between Body & Cover, UV Inhibitors Prevent Discoloration & Deterioration Such As Cracking Or Blistering, Injection Molded Of Structural Foam Polyolefin Material, Coloring & UV Stabilizers Are Added Along With Processing Lubricants When Needed, Product Class 20ND.
