A/C Refrigerant Tank Heater Blanket Mastercool Inc. R12 & R134A

Speeds up charge time by maintaining a constant temperature, which creates a positive pressure between refrigerant tank & A/C system. It assures total discharge of refrigerant from 30 & 50 lb. tanks. It heats tanks to 125° F resulting in maximum pressure of 185 PSI for R-134A and 170 PSI for R-12.