brass craft service parts sf0281x 15/16 -Inch x 27 x 55/64 -Inch x 27, Double Swivel Aerator Pull down to switch from stream to spray feature 15/16"-27 male and 55/64"-27 female thread Flow rate: 2.2 GPM/8.3 LPM Finish: chrome and white Material: No-lead brass and plastic