Viessmann Boilers Part 7871992. New, never opened. Surplus that is no longer needed, I am selling this and a few other parts for a friend who was a commercial boiler engineer. If you have any questions I can pass these on and get back to you. I have been assured that anything listed is as described, there will be no problems with them. The outer packaging is a bit marked up due to being in storage with other parts, it is only superficial. I post quickly, within 1 day.
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