ULING Z2 Kitchen Faucet Sink Sprayer Replacement Pull-Out Head(Universal G1/2" IPS Thread Connector,Polished Chrome) Engineering grade plastic (ABS) constructed with premium chrome finishing for defend rust and tarnishing 200'000 times switch testing and 12 MONTHS WARRATY Standard G1/2" screw connector suit to most pull-out hoses Two type water flow switch function(Stream/Spray) Rubber gasket included for back up