For technicians replacing an HVAC high limit switch

Smith ProMax and Lochinvar residential models

the VT3221 delivers consistent HVACR valve performance in demanding environments

Optimized Power Draw: Designed for low amperage consumption on 208-230V circuits to maintain system EER ratings

This unit effectively monitors conductivity to protect the heat exchanger from dry-firing

Maxitrol RV47L-1/2-812 Regulator 326058-758 For technicians replacing an HVACThe Maxitrol RV47L 1 2 812 is a professional grade appliance gas pressure regulator designed for precise delivery in light commercial and residential gas piping systems. Featuring a 1 2" NPT connection and a rubber seat poppet design, this unit provides reliable lock up and high sensitivity for both natural gas and propane applications. With a maximum inlet pressure of 1 2 PSI and a specific outlet pressure range of 8 12" w. c., it is engineered to