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This smart vacuum kit by Testo is a must-have for anyone in the HVAC and refrigeration industry. It comes equipped with a blue low side hose, red high side hose, and yellow service hose, making it easy to use and install. The kit also includes two valves and is compatible with a variety of refrigerants such as R-409a, R-500, and R-1234yf.
The Testo 557 model features wireless and digital technology, making it more efficient and accurate than traditional gauges. It is perfect for monitoring charging, temperature, vacuum, and pressure in HVAC and refrigeration systems. This kit is a great addition to any toolkit and is sure to make your job easier and more effective.
