J/B® DM-2™ Second Generation 4 Valve Added to HVAC PROTech® FieldTests

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The second generation DM-2™, four valve configuration will be added to the HVAC PROTech® FieldTest Evaluations. You wanna see how the upgrades compare to the first generation set? Only one place to do it real time. The ONLY Digital Manifold Gauge authority – anywhere. HVAC PROTech.com®

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