Check the listing for details. Heating Circuit Pump Assembly With Wilo Para 25/6 Pump, Direct for Central. Color: Black, Width: see description, Condition: New, Made in Germany. Listed at 258.28 USD. The ECOMIX EN003 pump group is a ready-to-install, professional pump group for DIRECT heating circuits. A Wilo Para 25/6 high-efficiency pump is installed. to be built in. Forward and reverse can easily be reversed from right to left. In the upper area of the pump group there are flat-sealing shut-off valves (1" IG) with built-in thermometers (0-160°C) and integrated gravity brake. If the pump group is installed individually, a wall bracket can be screwed to the shut-off valves (not included in the scope of delivery). The well thought-out thermal insulation made of EPP ensures an optimal climate inside the insulation, so that no heat build-up occurs. If several pump groups from the ECOMIX series are used, the individual insulation elements together with the distributor bar create an elegant, perfect unit.