Vaillant low pressure sensor

Vaillant low pressure sensor.

Suitable : 

• Vaillant aroTHERM Plus air-to-water heat pumps
•  VWL 35/6 A 230V S2,
• VWL 55/6 A 230V S2,
• VWL 75/6 A 230V S2,
• VWL 105/6 A S2
• VWL 125/6 A S2