You will get 3 Pieces FAST FREE SHIPPING Over 5000 Positive Feedbacks I also sell these in 1pc - 2pc and 6pc and carry Niagara shower heads. So check out my store :) These are a name brand NIAGARA and NOT A CHEAP PLASTIC replacement. These are a great way to save money on your water bill and to replace the old end on your faucet that is clogged up. The pressure compensated Needle spray bathroom and kitchen aerator from Niagara Conservation is a dual-thread aerator, which enables them to be installed on either male or female fixtures. While using only 1 gallon of water per minute, it still produces a satisfying stream of water. This dual-thread aerator has solid-brass housing and a polished chrome finish. Features Dual-threading for installation on both female and male faucet fixtures Water Sense Labeled 1.0 gallons of water per minute Solid brass construction with chrome finish For use in kitchens and bathrooms Meets or exceeds ASME standards, is California Energy Commission Certified, and is compliant to California Health and Safety Code 116875 and Vermont Bill S. 152 for low lead content. Needle Spray Flow Type Stylish, modern fits most faucets, works well in both kitchens and baths Measurements are Diameter .94" Length .94" Dual-thread brass connection, Male: 15/16-27, Female: 55/64-27