Nantucket Sinks Premium Bath accessories help to complete your sink in just the right finish and style. Nantucket Sinks umbrella drain with overflow finished in chrome. Update your bathroom with an advanced pop-up drain assembly with overflow. Made to fit 1.5" sink drain holes on bathroom sinks with overflows. This gleaming fixture brings a fresh new look to your sink coordinating to your desired hardware. Snug fit is ensured by a rubber seal ring on each side. Designed for use with sinks that have an overflow.