Rohl | Extended Disposal Flange or Throat for Fireclay and Shaws Sinks DESCRIPTION • For use with Allia and Shaws sinks • Works with InSinkErator batch feed and continuous feed disposals including Sears, KitchenAid, Whirlpool and fits InSinkErator Evolution Series • Not compatible with Waste King • Custom made for ROHL • Fits standard 3-1/2 in. Dia US drain openings • Brass construction except stainless steel model • Biscuit coordinates with Shaws Fireclay Parchment sinks