... , cleaning and Filling Machine HS-680 Connection: 1/4 SAE quick coupler with ball vlaveRefrigerant: R22 or R134a ... R404a or R410aFeatures: 1. Functions for recovery, cleaning,regeneration, vacuum, filling (oil, fluorescent,refrigerant) and monitoring. 2. Large ... operation and full monitor of pressure, temperature and vacuum with alarm setting. 4. High efficient heat exchanger and quick recovery. ...