- Large 3-1/8" (80mm) gauges
- 1/2" ACME
- Solid extruded aluminum body
- Stainless steel ball valve design controls flow smoothly and quickly with only a quarter turn
- Extra large sight glass for visual refrigerant check
- Silicone dampened gauges smooth out needle movement
- Gauges can easily recalibrate in the field to maintain accuracy
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