Specification - MC-15D - Double, Vertical, Fixed, Offset from Stack Water Closet Carrier MIFAB Series MC-15D double, vertical, fixed water closet carrier with offset lacquered cast iron fitting, 4" (102) no hub waste and 2" (51) no hub vent connection, lacquered cast iron gasketed adjustable faceplates, universal floor mounted cast iron foot supports, adjustable 8" tapered thread ABS nipples with integral test caps, neoprene bowl gaskets, hardware, threaded rod protectors and polished chrome plated finishing cap nuts.