KES BRASS 20mm Female Threaded Aerator 360 Degree Swivel Faucet Replacement Part Water Saving, Polished Chrome, PA7B Brass construction, ensuring quality and longevity Multi-layer chrome finish, build to resist daily corrosion and tarnishing Aerator smooths & aerates the water to produce a 'champagne' flow Can be fitted to European style bidcock Diameter 20mm (female thread)