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Utility box extension ring 4 inches height x 2-3/8 inches width x 1-7/8 inches depth 16.5 cubic inches.
In Stock in Gescan
2 inches x 3 inches switch box extension. Maximum adjustable depth is 7/8 inches Complete with mounting screws.
Utility box extension ring 4 inches height x 2-1/8 inches width x 1-7/8 inches depth 14 cubic inches.
Available from Manufacturer
Device box extension. Adds 5.5 cubic inches to any 2-1/2 inches deep Gangable device box. Provision for external nailing.