FASTENERS & TOOLS | Acoustical, Ceiling and Partitioning, Electrical | Control Circuits Lighting Ballasts Meter Circuits Electronic Circuits | Designed to Compensate for Length Changes Due to Temperature Variations in Exposed Conduit Runs | For Use in Metal Framing Applications | For Use With Sheet Metal | For Use With Threaded Rigid Metal Conduit and Imc | Ready to Use Storage Containers Quickly Dispense a Tangle Free Line and Also Protect Line From Direct Sunlight