- Solid extruded aluminum body
- Free-floating piston type valves reduce o-ring wear
- Extra access port for vacuum line
- Silicone dampened gauges smooth out needle movement
- Gauges can be easily recalibrated in the field to maintain accuracy
- Extra large sight glass for visual refrigerant check
- Large easy-to-grip knobs
- Models available for various types of refrigerants
- This unique design covers 2 7/8" (R134a), 2 1/2" and 2" (OIL) charge cans
- Includes 1/2" ACME-M and 1/4"FL-M ports
- Internal safety check valve prevents system backflow.
The Mastercool 98660-PROM is a R12/R134a Dual Professional Extruded Aluminum Gauge Set with silicone dampened gauges, a set of 3 R134a nylon barrier hoses, a set of 3 R12 nylon barrier hoses, professional R134a couplers, recalibrateable gauges, and the 85530. It comes in custom molded carrying case.