R-134a Gauge Coupler Conversion Kit

R-12 to R-134a gauge conversion kit.  This kit is designed to adapt R-12 gauges to R-134a using manual couplers for a more secure fit onto the charge ports.  The couplers will include the adapters for the hoses, and the refrigerant tank.  The manual couplers have blue and red on the top to help identify the low side and high side gauges.