The 10 -in round valve boxes and covers are injection molded of structural foam polyolefin material with a melt index between 10 - 12 coloring and UV stabilizers are added, along with processing lubricants when needed The 10 -in round body shall be tapered and have a minimum wall thickness of 200 -in The cover seat area shall have 6 structural support ribs on the underside of the seat, each with a minimum thickness of 250 -in The bottom of the body shall have a 500 -in flange The 10 -in round cover shall have an average thickness of 250 -in
Residential/commercial grade standard series valve boxes are offered in a wide range of sizes
Overlapping covers prevent dirt and grass from settling between body and cover
UV inhibitors are added to prevent discoloration and deterioration; such as cracking or blistering
The Bayonet twist-on cover ensures easy removal, includes a brass insert so bolts may be easily added for lock down