American Standard M922991-0020A MALE AERATOR 1 GPM 15/16-27UNS Polished Chrome Genuine American Standard repair part MALE AERATOR 1 GPM 15/16-27UNS Check your repair part information for compatability Call American Standard's Customer Service at 1-800-442-1902 to see if this part will fit your American Standard product Used by plumbers to repair American Standard products