The NoCalc Combi Compact Starter Set is a comprehensive water treatment system designed to protect your plumbing and appliances from limescale and corrosion. This versatile system combines pre-filtration and dosing technology to improve water quality while extending the lifespan of taps, valves, and heating systems. Model: NC38770 (Scale Defender) Pre-filter: Integrated mesh removes sand, dirt particles and debris Dosing System: Unique technology prevents limescale and corrosion build-up Cartridge Life: Average 40,000 litres (40m³) Approvals: FAO & WHO approved, BS-EN 1212 compliant Applications: Point of use (boiler/central heating) or whole house protection Connections: Includes 22mm and 15mm horizontal couplings Features: Optional electronic sound indicator for cartridge replacement Benefits: Protects taps, valves, stopcocks; improves drinking water quality Installation: Compact design suitable for meter cupboard mounting Standard: British standard norm for drinking water