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1 in plastic insulating bushings are used to protect low voltage cables from damage caused by sharp edges on the end of EMT conduits. They may be used with many low voltage cables including, coaxial, computer, telephone, category 5E, category 6, audio, video, fire alarm system, security system, and thermostat cables. Garvin Industries' plastic insulating bushings have a tight press fit that firmly holds it while the installer snaps it in place on the end of conduits; they will not fall off when cables are pulled. They require no special tools for installation. These insulating bushings are an economical means of protecting cables passing through EMT conduits.