Monarch Scaleout Advance SA-15 - Complete With Full Installation Kit. This Scaleout Advance model replaces the Scaleout SXP15, SXP15+, SC2, S15T and S15C Monarch Scaleout Advance combining whole house scale prevention with premium filtered drinking water at every tap. The Scaleout Advance combines whole-house scale prevention with premium filtered drinking water at every tap. The range offers limescale protection for kitchens, bathrooms and entire plumbing systems, and features an anti-microbial filter housing for enhanced safety. The Advance removes chlorine, bad tastes, odours, pesticides, herbicides and organic chemicals from water and is complete with a 5-year parts and 2-year labour warranty. The Monarch Scaleout range comprises four units - SA- 15, SA-22, SA-28 and SA-LC,.