Viessmann 7373253 Viessmann Double-Pipe Adapter (SK) 110/150 110/110

When used in conjunction with the Viessmann boilers, the low-loss header acts as a hydraulic break, decoupling boiler and system circuits from each other. It is recommended to use the low-loss header...

The Viessmann 7529680 Installation Set is a factory‑approved kit designed for use with Viessmann B2HA series condensing boilers (112‑150 MBH and 399‑530 MBH models).  Specs Model / Part Number:...