Garvin 52181-OW 4″x3-1/2″ Square Old Work Junction Box w/Knockouts

Garvin 52181-OW Description

4-in square 3-1/2 inch deep junction boxes with old work clips and plaster ears and (8) 1/2-in & (4) 1/2 in-3/4 in side knockouts and (3) 1/2-in (2) 1/2 in-3/4 in bottom knockouts are added to existing walls when deep devices (speakers strobes etc.) are required to update a structure. Garvin’s labor saving design eliminates the need to awkwardly install boxes and extension rings to accommodate deep devices.