thefeatures of aerators: 1) Material: brass. Chrome plating 2) Function: 1,5 GPM 5,7L/MIN 3) Size: 24 mm 4) Bubble-type constant-current water-saving devices,our patent's product,save cost and saver earth. 5) It's supplied to world known brands and sells in large quantity for it's widely use. 6) Five-year guarantee. 7)One stop service 8) Easy to use and easy to clean 9) OEM producing: From dealing with raw material to shaping, to polishing, to electroplating and to packing, all these processes are finished by ourselves. Welcome to our factory to see the producing process by yourself. 10) We have professional strit quality control department whoes aim is to make sure none of the products from our factory has quality problem.All of our productshave ISO9002 certificate. Based on this, our factory has been stand for 39 years until now. 11)The processing of our bathroom accessory is : Feed-Casting-examination-machinery-processing-examination-appearance-polishing-examination-electroplating-examination-assembling-examination-packing-delivery