Whitehaus RNW35L-POCH 3-1/2-Inch Basket Strainer for Deep Fireclay Applications, Polished Chrome Fits DUET # WH3018, WH3618, WH3719 Fits REVERSIBLE SERIES Accessories Fits Only Specific Fireclay Models For Deep Fireclay Sink Application Polished Chrome Other Finishes Available 3 1/2-Inch Diameter