Broan-NuTone IWA3-200UL-N Three-Wire Flat Ribbon Cable (UL Listed), 200 ft., 22 gauge NuTone Intercom Wire is an integral part of all NuTone Radio Intercom Systems; such wire has been designed to enable full system performance and to minimize outsid e interference, dimmer noise, radio frequency interference and other reception problems. If wire other than NuTone specified wire is used in the installation of a NuTone Radio Intercom, the Warranty shall not be applicable to any defect or problem re lating to the use of non-NuTone specified wire. Broan-NuTone IWA3-200UL-N Three-Wire Flat Ribbon Cable (UL Listed), 200 ft., 22 gauge Features: • UL Listed • 200 ft • 22 ga. • Flat Parallel 3 Wire Cable (UL Listed