15mm (1/2") Standard Installation Kit with make your own hoses. (ID: 510) Price: £ 77.35 This kit includes all of the fittings that you will need to install a water softener on a 15mm indirect (tank fed) systems. INCLUDED IN THE KIT: 15mm bypass set with built in non-return valve. 5 meters of 12mm mains hose with connector fitting 4 washers 2 meters of 1/2" overflow / drain 5 meters of 3/8" drain a plumbing out kit and some pipe clips. Note: If you're not sure if the system is direct or indirect then order the 15mm (1/2") Full bore installation kit with make your own hoses. Allow 3 - 5 working days for delivery. For faster delivery : Phone 01908 270216 for card payments.