3 x 22mm Tap Aerators Flow Restrictor with Removal Wrench Tool - Bought in error opened no used Brand New The honeycomb aerator makes the water flow quieter, softer and less splash-free. This allows you to save up to 30% on water. Made of strong ABS: no corrosion, no clogging, no rust, no odor Easy to install: Using a wrench, screw the aerator directly into the faucet, no mouthpiece required Ideal for repairing faucets with low water performance or defective aerators without having to replace the faucet.