Check the listing for details. ENVIRON Pump Assembly 3 Way Mixer Heating Circuit Set Heating Pump Wilo. Color: Black, Width: 250mm, Condition: New. Listed at 416.56 USD. The ECOMIX Ent001 pump group is a ready -to -install pump group for heating circuits such as underfloor heating, wall heating, radiators, etc. With built-in three-way mixer made of brass. You can select between an Elodrive ST 10 and an Elodrive STM electrical servomotor. A Wilo Para StG 25/8-75 high efficiency pump is installed. The in front and return can simply 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). 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 from the EPP ensures an optimal climate inside the insulation so that no heat stalls arise. If s.