The Industrial water pump 0.3 m³/h 4.5 W 10 bar WILO STAR Z Nova A is a glandless hot water circulation pump for one and two family houses. Pump for pipe installation, blocking current-proof motor, complete with brass housing and non-return ball valve Stainless steel-shaft, polypropylene impeller (Noryl) diameter stainless steel shaft. Housing-threaded Rp 1 / 2. Power savings of up to 80% compared to standard drink water circulation pumps and unbeatable low power consumption of only 2 to 4.5 watts. It is also the only drink water circulation pump for water hardness up to 20°dH. With its corrosion-resistant stainless steel impeller it meets the highest safety and hygiene requirements.