Check the listing for details. Valcom v-9916 Ceiling Bridge and Backer Box. Condition: New – Open box. Listed at 37.00 USD. This Valcom v-9916 Ceiling Bridge and Backer Box is a top-quality product that is perfect for those who are looking for a reliable and efficient intercom system. The brand Valcom is known for producing high-quality access control equipment, and this model is no exception. It is designed for use in horns and speakers systems, making it a versatile product that can be used in a variety of settings. The model V-9916 is easy to install and use, and it comes with a ceiling bridge and backer box that is designed to provide a secure and stable connection. This intercom system is perfect for use in businesses, industrial settings, and facility maintenance and safety applications. It is also ideal for use in intercom systems, access control equipment, and other related fields.