Signature Hardware 900406 3-1/2" Brass Kitchen Garbage Disposal Flange and Stopper WhiteSignature Hardware 900406 3 1 2" Brass Kitchen Garbage Disposal Flange and Stopper This durable disposer flange is resistant to rust and holds up to the demands of regular use. It fits most InSinkErator disposals and continuous feed three bolt disposers with 3 3 8" interior diameter. Matching stopper included. Signature Hardware 900406 Features: Not compatible with fireclay or marble sinks Flange made of solid brass, except Stainless Steel, which is