Multi box mounting brackets for 4" or 4-11/16" square boxes with 16" stud width are used to secure conduit boxes in stud walls. Garvin Industries’ multi box mounting brackets allow the installer to quickly and easily mount 4” and 4-11/16” square conduit boxes in stud walls. Three box locations can be used with Garvin Industries’ HC-50, HC-75, HC-100 connectors and chase nipples to connect side knockouts on boxes.