DUAL ENTRY: fits all water supplies, bottom or side inlet. WATER SAVING SYSTEM: delayed action technology saves up to 7lt of water per day. RESISTANT: (15mm) 1/2 inch plastic inlet tail. EASY TO ADJUST: telescopic height adjustment and water level adjustment with screw. QUICK FILLING: around 35 seconds for 6lt at 3 bars. QUIET. PRESSURE: from 0.2 to 16 bars, resists pressure spikes of up to 20 bars.