The NEOPERL Careguard 1.5GPM 55/64 in.-27 female aerator is a laminar stream that is crystal clear in appearance. This insert incorporates the natural protection of silver. Agions silver prevents the growth of a broad range of microorganisms that could be caught in droplets of water within the faucet attachment. Patented single piece construction is virtually unbreakable and will ensure a longer useable life. The Cascade design prevents lime buildup. Solid brass housing with a chrome finish. This product is packaged in a tube of 6.