CONVERSION KIT
LINKASINK ships a CONVERSION KIT (SPACER) with every sink that has a 1.5” drain opening. Each spacer is shipped in a clear zipper bag with 1 piece of 1.5” ABS pipe and 1 rubber gasket/washer. The CONVERSION KIT is installed with 1 rubber gasket/washer (provided with drain) touching the sink, then the spacer, then the other rubber gasket/washer (provided with the conversion kit). A plastic friction washer is usually provided with the drain to allow the nut to tighten without twisting the rubber washer.