Southwire BMB1U 4 in. Square Box Mounting Bracket for Adjustable Depth Device Rings
Garvin BMB1U is used for both 4 in square and 4-11/16 in Square Boxes when mounting adjustable depth device rings. It's versatile design allows a 1 gang (AMR1) 2 gang (AMR2) or square to round (AMR0) adjustable mud ring to be perfectly mounted every time. This multipurpose bracket can also be used with traditional 4 in and 4-11/16 in square device rings.
Garvin BMB1U is used for both 4 in square and 4-11/16 in Square Boxes when mounting adjustable depth device rings. It's versatile design allows a 1 gang (AMR1) 2 gang (AMR2) or square to round (AMR0) adjustable mud ring to be perfectly mounted every time. This multipurpose bracket can also be used with traditional 4 in and 4-11/16 in square device rings.
