NDS JUMBO RECTANGULAR VALVE BOX WITH OVERLAPPING COVER:

13"X20" Rectangular structural polyolefin valve box with overlapping lip cover and UV inhibitor. Depth: 12 inches; Lid: 21-1/2 X 14-7/8 inches; Outside Base: 25-3/4 X 19 inches.

The NDS STANDARD SERIES 13"X20" rectangular valve boxe's 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.

• Injection molded of recycled polyolefin material with a melt index between 10-12.
• Coloring and UV stabilizers are added, along with processing lubricants when needed.
• The 13"X20" body shall be tapered and have a minimum wall thickness of .250"
• The body shall have a double wall at the top cover seat with a minimum thickness of .25."
• The cover seat shall have 16 structural ribs on the underside of the seat, each with a minimum thickness of .250"
• The bottom of the body shall have a .500" flange
• The 13"X20" cover shall have a average thickness of .250"
• The valve box shall have a 3/8" 304 SS nut for the bolt-down as a standard feature