Steven Levy Enterprises buys and sells new, unused, and used industrial surplus couplings, clamps, and groove lock fittings. Browse our inventory of couplings, clamps, and groove lock fittings available for purchase. Couplings are used to connect two pipes or tubes together. Pipe clamps are used as the support mechanism for suspended pipes. Groove lock fittings are used to join pipes in both wet and dry systems. Groved pipe joints provide safe jobsites, ease of piping system expansion and contraction, and less downtime. Tell us what surplus couplings, clamps, and groove lock fittings you have for sale or call us at 713-910-4337.