Opened Box Never Used Mixer shower that uses water from both hot and cold water systems to create the perfect shower temperature. To increase performance you can add a pump: if you have a gravity-fed system. Maintains constant water temperature. Limescale-resistant. Pre-set maximium temperature. Suitable for All Plumbing Systems Delivers 6Ltr/min at 0.1bar Concentric Control Rotary Temperature Control Riser Rail 3-Spray Pattern Shower Head Aqualisa Trusted Thermostatic Technology Safe for the Whole Family