Isometric view of Concast's Pull Box Extension

Link to the Pull Box photo albumPull Boxes

Pull Box Extension Rings

The heavy traffic extensions are designed to be stacked on Concast's line of pedestrian rated & heavy traffic rated pull boxes; thereby affording more height options.  If using an extension, the cover intended for the base unit will now be used on the extension.  These extensions come in a variety of heights that progress in 1 inch increments.  Example: a 12" tall extension for a 38" x 38" pull box is part number PBEX-38-38-12

Pull Box Extension
Generic Part Number
Width
(Inches)
Length
(Inches)
Height Range
(Inches)
PBEX-38-38-XX 38 38 6 to 48
PBEX-38-44-XX 38 44 6 to 48
PBEX-38-62-XX 38 62 6 to 48
PBEX-40-86-XX 40 86 6 to 41
PBEX-44-56-XX 44 56 6 to 59
PBEX-44-68-XX 44 68 6 to 67
PBEX-56-56-XX 56 56 6 to 67
PBEX-50-114-XX 50 114 12 to 69
PBEX-54-120-XX 54 120 12 to 71
PBEX-60-84-XX 60 84 12 to 65
PBEX-66-120-XX 66 120 12 to 65
PBEX-72-72-XX 72 72 12 to 65
PBEX-84-108-XX 84 108 12 to 65
PBEX-84-120-XX 84 120 12 to 72