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Rectangular Valve Box Extension ~ 13" x 20" x 6"
Item # 9W78SK
JUMBO RECTANGULAR VALVE BOX EXTENSION
6" extension for NDS 13" x 20" jumbo box
UV inhibitors prevent discoloration and deterioration such as cracking or blistering
Made of injection molded structural foam polyolefin material
Wall thickness of .250"
Includes 3/8" brass nut, a bolt may be added but is not included for lock down
Add an extension if you need extra room
Valve box and valve cover are not included with the extension
Fits on top of the 13 x 20 NDS-117BC jumbo rectangular box