Check the listing for details. 2-Strang Solarstation 2-405.8oz With High Efficiency Pump Environ Wilo For 15/6. Condition: New, Made in Germany. Listed at 349.01 USD. Learn everything about the high -quality Environ Tsol Solarstation - the perfect solution for your solar heating system! Our pre -assembled, compact two -strand solar station comes with a powerful Wilo Para high efficiency pump and offers numerous advantages. With a flow controller of 2-12 l/min, the solar station ensures optimal performance. Thanks to innovative functions such as loading/emptying/cleaning of the circulation pump, without emptying the system and a built -in ventilator in advance, maintenance is child's play. The solar station also has a solar security valve, manometer and flex connection for the expansion vessel. The side opening enables efficient pump cooling, while the flanged ball cocks enable precise control with thermometers. Technical data at a glance: check valve opening: 350 mm H2O, nominal size: DN20 / ¾ ", max.