FB-300 SIEMENS Flush Box Ft-300 Remote Telephone StationsModel FB 300 is a flush mount back box for red Model FT series Siemens telephone stations. Product is UL, ULC Listed; FM, CSFM and NYCFD Approved. Additional information Weight 5 lbs Dimensions 15. 00 7. 00 3. 50 in Manufacturer Siemens Industry, Inc. Brand Siemens Condition New Unit of Measurement EA (Each) Production Status Active Open Datasheet