Replace a damaged or missing valve box cover with the 6 in. Round Valve Box Cover. Works with the 6 in. round valve box (107BC ) to cover a single valve or irrigation accessories and protect components from damage. Prevent damage due to the elements, pedestrian traffic, lawn care equipment, and potential vandalism with the 6 in. round lid on top of the 6 in. round valve box. Built for durability, the green irrigation control valve (ICV) cover features structural reinforcing ribs. Replacement cover snaps onto the 6 in. valve box and has a finger hole to remove the lid for maintenance. The valve box cover is made of polypropylene (PP) using a combination of recycled and virgin content and is treated with UV inhibitors to prevent fading and cracking due to sun exposure.