i retract the question about the manufactured hub previously asked. I did notice that gasket in between to hub and enclosure however. kinda hard to obtain proper bonding that way isnt it? Well, considering meyers hubs have the gasket built in next to the threads and the outer edge is rounded with teeth to obtain a good biting bond even through the enamel that looks to be located on top of the enclosure.
That may be of some truth, however if the case were that the GRC(Galvanized Rigid Conduit)had the galvanized processes been removed prior to the installation of a coupling to ensure the best type of seal and proper bonding of both pieces of metal together and had it been made wrenchtight.
[This message has been edited by wirenut73 (edited 05-25-2004).]
