Instanta Water Filter KitsInstanta SureFlow AQ4FILTER In-line Scale Reduction Cartridge With Hose Assembly & Isolation ValveCompare AQ4FILTERCapacity: 4,500 LtrWarranty: N/AIn Stock £56.99ex. VAT£68.39inc. VATRRP: £83.71SAVE: £26.72RRP: £100.45SAVE: £32.06