FeaturesAll steel construction insures mechanical protection for the racewayFittings are available in 1/2 in to 4 in trade sizesAll fittings are marked "Wet Locations" to allow inspecting authorities to immediately determine that the installation is up to codeAll connectors are supplied with a factory installed knockout seal no need to add the expense of buying a gasket separatelyNo need to disassemble the cutting prior to installation RACO® rain tight steel EMT Compression fittings are designed so that when they come out of the carton they can be installed directly on the conduit no need to waste time loosing compression nutsEasy installation, no need for special tools to install properly install these fittings like any other steel EMT Compression cutting no need for a torque wrench to insure proper installation0.45 in thread length