Ritchie Engineering has developed a refrigerant gauge set to measure some common retrofit refrigerants. Since each HFC refrigerant is pressurized differently, accurately monitoring these new refrigerants has become extremely difficult. Thus, the company is offering a set of large 3-1/8-inch red and blue dry manifold gauges specifically calibrated for monitoring these refrigerant alternatives. These 1-percent accuracy (Class 1) gauges with front recalibrating screw are available individually or on the Yellow Jacket Titan™ 4-Valve Test and Charging Manifold.

Ritchie Engineering Co. Inc., Yellow Jacket Products Division, 10950 Hampshire Avenue South, Bloomington, MN 55438; 800-769-8370 or 952-943-1300; 800-322-8684 (fax); custserv@yellowjacket.com; www.yellowjacket.com