Zinc Die Cast Fitting Watertight Electrical Rigid Conduit Hub 3/4" 2 Steel City ® NC 061 The Reynolds Company Order Halex Halex - adalet 2in. Zinc Die Cast Water Tight Conduit Hub 16320, 16320 at . Great prices & free shipping on orders over $50 when you sign in or sign up for an account Watertight Conduit Hub provides a rain, oil and dust-tight joint at knockouts or slip-fit holes. Conduit hub Water tight Description Halex® Water Tight Conduit Hub is use to connect rigid or IMC conduit to a load center or other metal enclosure where a water-tight joint is required at knockouts or slip-fit holes