The Sanus Systems VMCA4B Dual-Joist Adaptor securely locks your monitor in place when using a ceiling mount and a dual joist set up. This model is designed to mate specifically with the VMCM1 Premier Mounts ceiling mount system.
Sanus Systems VMCA4B Features
Designed Specifically: The VMCA4B is designed to specifically work with Premier Mounts VMCM1 ceiling mount. It fits perfectly and matches aesthetically