OBFA OWER OLD WORK EXPANSION

The world's first in-field expandable plastic junction box. The Old Work Expansion Ring allows the Old Work Starter Kit to be expanded by one-gang.  Requires Old Work Starter Kit.  Industry standard features:

Adds a single gang capacity

Dimensions (DxWxH): 3.5"x1.75"x4.25"

Constructed of high grade PVC (Fire Resistant)

Includes 2 additional wings, giving the box better stability in the wall

Includes 4 knockouts for entry of cables

UL Listed