Product review (4 stars): Wanted a Sinkmaster--Settled for a Waste King
My Sinkmaster Disposal bought many years ago requires a 3-inch diameter splash guard which is no longer available, howerer Waste King apparently replaced Sinkmaster but the splash guard is slightly bigger than 3 inches and sits a little more snug in the sink throat. It works really good at preventing splash back when operating the disposal but water or other liquids drain much slower when the disposal is not in use. You cant buy the splash guard separately without the stopper.