MASTERCOOL 98250-220 Electronic tank heater blanket 220v REFRIGERANT HEATER BLANKET / BELT FOR ASSISTING IN THE LIQUID CHARGING OF REFRIGERANTS. 220 VOLT 300 WATT OUTPUT. EASILY FITTED AND A NECESSITY FOR LIQUID CHARGING The Mastercool Refrigerant Tank Heater Blanket speeds up recharge time.Assures total discharge of refrigerant from 30 lb and 50 lb tanks of 125oF/55oC and maximum pressure of 185 PSI (R134a) and 170 PSI (R12) Quick working 300 Watt heater element.An excellent compliment to the 98210-A Accu-Charge II Electronic Refrigerant Scale