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