MIFAB® SPC1.0 cast iron split ring clamp complete with 10″ long all threaded galvanized steel stud, 1/2″ diameter with locking nut. Designed to thread into the 1/2″ female tapping located at the top of the legs of the MC-10 water closet carriers and to receive the flush valve copper stub out. Dimension from the centerline of the split ring clamp to the water closet carrier nipple is 4 3/4″ – ideal for the flush valve rough in.