Profile: Etco Specialty Products, Inc. is a manufacturer of specialty fittings. Our products include E-Loc couplings, E-Loc transition fittings, Double E-Loc couplings, duct plugs, multi-caps and push plug. Our E-Loc coupling is ideal for joining dissimilar materials and designed to join different sizes of conduit. Our multi-cap conduit sealing system features positive seal between conduit & cable, adapts to 1/2" thru 1" cable and easy install. Our brands include T-Coneā,¢, E-Locā,¢ and Multi-Capā,¢.