How many HVAC companies can boast a city holiday in their honor? Maxitrol can. Last week, the Southfield, Michigan-based manufacturer of gas pressure regulators, modulation systems, and safety devices ...

Making it easy for inspectors to identify on-site, Maxitrol now attaches a yellow sticker to the stack of its regulators that reads, “Certified Gas Line Pressure Regulator, Z21.80/CSA6.22.” Maxitrol ...