Check the listing for details. Solar Hot Water Pump Station with High Efficiency Wilo Yonos Para PWM Pump. Condition: Brand New. Listed at 311.62 USD. The listing postage is invalid. Please contact for cost Solar Pump Station with WILO High Efficiency Solar Pump For Closed Loop Indirect Systems The unit with high-efficiency solar circulating pump, fully assembled and tested, consists of:Flowmeter with flow regulation with filling and draining valves.High-efficiency solar circulating pump Wilo Yonos Para ST25/7 PWM.3-way ball valve with integrated non return valve 10 mbar (which can be excluded by rotating the handle by 45°) supplied with in-handle thermometer (range 0°C-120°C).Security unit 6 bar with manometer ø50 mm 0-10 bar with 3/4” Male connection to the expansion vessel.Centre distance 125 mm. EPP insulation box (Measurements: 155x425x150).A special back plate fixes the unit to the insulation box and it allows a quick fitting to the wall or to the solar cylinder.Constant temperature 120°C; (short time temperature: 160°C for 20 s).External connections: 3/4” Male