This 1.5 GPM Transitional Swivel Sprayrator has dual threads 15/16 in.-27M or 55/64 in.-27F. It features such as cyclone technology which reduces water consumption without sacrificing water pressure. It has a 360? motion sprayrator with 2 spray patterns; stream and aerated wide spray that works like a mini side spray. This faucet sprayrator is watersense certified and can save you up to 30% water consumption.