The PRO-SET 2 1/2" (68mm) Low Side Pressure Gauge uses easy to read color coded dials with an advanced flutter-free design. Durable metal casting with a high impact pop-in lexan lens provides strength for tough field conditions. The front calibration access port allows you to service as needed. Compatible with R-410A
Warning: This product may expose you to chemicals including lead which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov