Use the Bridgeport TWB-55 1-1/2-Inch White Polyethylene Insulating EMT Bushing to protect telephone, computer, video and other low voltage wiring from the sharp edges of EMT. With an overall length of 0.610 inches and a temperature rating of 90 degrees Celsius, the bushing is solidly built to meet construction and general industry OSHA-recognized, NRTL-listed electrical standards, and to comply with RoHS and NEC Article 300-15(c). Bridgeport builds every product with the same goal in mind: guaranteeing a fast, professional-grade, trouble-free installation. Our wide selection of products are manufactured for innovation, consistency and quality ― providing you with connectors, couplings or transition fittings that are safety listed, ensuring code compliance to meet your needs and enable you to do your best work at a lower total cost. When you need a solution you can depend on, be sure to look for Bridgeport Orange.