What are the Key Features of the Triflow Quadro System? Hot and Cold filtered water on demand Dedicated waterway for filtered water to avoid cross-contamination. Four temperature settings ideal for tea or coffee. Exclusive Triflow Filtration System, with high performance Swiss-made filter cartridge. No tools required for simple cartridge replacement. 3 Litre capacity Heater Tank. Compact design - Heater will sit comfortably under your sink. Triflow Quadro taps are completely manufactured and assembled in UK. 5 year warranty on all Triflow Quadro taps. 2 year warranty on Heater unit and Triflow filter.