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This TI02 key
Hassle-free:
Limescale can be a major problem in hard water areas
Max Pressure: 10 bar
This ET01 key
Sunamp Thermino Optimino xPlus Viessmann hp Key VN01 This TI02 keyThermino technology is futureproof. This VN01 key, suitable for Sunamp Thermino xPlus models, is compatible with Viessmann Vitocal R290 heat pumps.
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