Expansion Coupling, 4", Steel

Low cost and easy to use. Assembles like a regular EMT set screw coupling. Use to compensate plus or minus 2" lateral movement of conduit in dry locations. Available for use with trade size 3/4" thru 4" steel EMT. To install simply slide coupling end stop onto fixed end of EMT and tighten set screw. Place movable EMT completely into coupling and mark engagement, remove EMT and mark half the distance of engagement, reinstall EMT to half distance