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Specially designed for internal doors, including fire doors, the TS 73 V is a universal solution for doors of differing designs and styles. The flat and compact format of the TS 73 V means that there are practically no problems with installation; and tried and trusted quality is your assurance of reliability. and manufactured to high quality standards to meet the growing demand for an economical solution of high performance concealed overhead door closer with standard features. As a concealed door closer ITS 915/900 can be installed directly in the door or frame, making it virtually invisible. The compact design of the closer body and slide-channel allow the door to maintain a high level of integrity.