Easy Clean system prevents dirt and limescale deposits, making the nozzles easier to clean. Multi-hole bathtub mixers incorporate a very sturdy, stainless steel adapter hose connected with the kitchen/bath hose through an M15/1 tip. Should the kitchen/bath hose need to be replaced, it can be done without moving the tub. The Air system mixes the outflowing water with air. As a result, the droplets are fuller and softer, making the shower experience more delicate and relaxing.