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Disconnect existing disposer from sink bowl or cone. B. Find the diagram that matches your sink bowl or cone. C. Measure the A and B dimensions (also C, D and E if indicated). D. Match the manufacturer and dimensions to find the adaptor number to order. FLANGE SINK MOUNT A B Waste King, ISE, Toledo, National 4." 5-1/8" 11327A Discard previous adaptor parts. FMC, Avant 4-5/8" 5-1/8" 11378 Re-use split ring. FMC, Avant 5." 5-11/16" 11327C Discard previous adaptor parts. Bus Boy 6" 6-7/8" 11327K Di