Check the listing for details. EnvironBox Pump Group 2-way 2 unmixed Hk. with distribution bar and hydraulic. Color: Black, Width: see description, Condition: New, Made in Germany. Listed at 647.77 USD. Pump group distribution system 2x Unmixed heating circuits with distribution bar/hydraulic switch ✓ The ENVIRON BOX only requires half as much space as conventional pump groups. ✓ The ENVIRON BOX can be installed in three different positions. This allows your specialist company to determine the best position for your installation. Advantages of the ENVIRON BOX: 1. Installation possible in the smallest space 2. The entire system is completely insulated 3. Total protection of electrical components 4. Protection and ventilation of the pump 5. Protection and ventilation system of electrical components 6. Ball valves with check valve 7. Includes wall mount 8. Easy Installation: The ENVIRON BOX is easy to install, compact, lightweight and easy to use. 9. Modular design 10. Integrated distributio.