This OEM part is the direct replacement air vent for Viessmann Vitodens 100-W and 200-W boilers

Advanced Airflow: Built-in perforated air diffuser optimizes exhaust discharge and prevents back-pressure issues

5 TR (depending on the specific orifice used)

Full Flow Performance: Designed to handle high-velocity suction gas with negligible pressure drop

Simplified Installation: Comes as a complete compressor repair kit with a specific mounting bracket and wiring schematic for rapid field replacement

MARS 43307 Pressure Switch 320819-301 This OEM part is theFinding a reliable replacement for high pressure cut out applications requires components that withstand rigorous cycling. The MARS 43307 Pressure Switch is a heavy duty, capsule type control engineered for HVACR system protection and compressor safety. This specific high pressure switch features an SPST open on fall configuration, calibrated for 400 PSI cut in and 300 PSI cut out. Rated for R 410A compatibility and other high pressure refrigerants,