743PN Finish: Polished Nickel Features: -I.s.e. Disposal throat escutcheon/flange.-Can be used with Allia kitchen sinks.-Fits I.S.E. disposals including: Sears, kitchenaid and whirlpool. Dimensions: -For standard 3.5" drains. Warranty: -Manufacturer provides 2 year warranty against defects (EXCEPT on Tuscan Brass finish).