Marketing InformationWATTS® ISCA-121 industry standard single vertical adjustable water closet carrier with epoxy-coated cast iron fitting 4 in (102) no hub waste and 2 in (51) no-hub vent connections, epoxy-coated cast iron patented compression seal faceplate assembly and epoxy-coated cast iron foot supports with incremental height markings. Adjustable for standard and wheelchair height, adjustable ABS nipple with integral test cap and neoprene bowl gasket, plated hardware and chrome cap nuts.