Monarch Mini Aqua HE FreeFlow Water Softener - The next generation water softener with FreeFlow Valve and Opti-Brining technology making the Monarch HE ultimate range one of the most efficient water softeners on the market This Monarch Mini Aqua HE is supplied with a hi-flo installation kit - suitable for use with mains fed combination boilers fitted to a 15mm mains supply or pressurised, (unvented) systems, generally fitted to a 22mm main, but not exclusively. The hi-flo Monarch installation kit includes the following 1 x Pair 3/4", inlet/outlet, Maxflow, heavy pattern, braided stainless, 600mm long hoses. 1 x Rapid fit hi-flow bypass for easy installation In addition to the installation kit and flexible hoses every Monarch Mini Aqua water softener .