Ultimate Support TSM-138MK Socket Mounting Bracket
Glass-reinforced 1-3/8 (35mm) tube). Universal bracket is compatible with most speakers. Diameter from outside edges is 4 (102mm) All hardware included for installation.
Glass-reinforced 1-3/8 (35mm) tube). Universal bracket is compatible with most speakers. Diameter from outside edges is 4 (102mm) All hardware included for installation.