BrassCraft SF0046X Dual Thread Faucet Aerator with 15/16-Inch 27 Male and 55/64-Inch 27 Female Thread - 2.2 GPM Designed to connect to most bathroom and kitchen faucets with inside (female) or outside (male) threads PVD satin nickel plated, no-lead brass for a durable high quality appearance Max Flow Rate: 2.2 GPM/8.3 LPM No-lead certified Easy-to-follow instructions included New California state legislation prohibits sale of product in this state