Sink Strainer Sink StrainerChrome Polished(CP)(Available in various finishes:ABZ,CP,PG,SBZ,ORB,FB,SN,BN,PN,SC,PVD,ACP,LG,AN,AP) LARGE BASKET STRAINER WITH POST STYLE BASKET Complete with nuts & washersFits 3-1/2 to 4 opening - 4-3/8 flange diameter LARGE BASKET STRAINER WITH WING NUT LOCKINGSTYLE BASKET Complete with nuts & washersFits 3-1/2 to 4 opening - 4-3/8 flange diameter