Pro-R Factory Fabricated “Pre Insulated” phenolic duct has recently passed 3rd party independent witness testing at 10” W.G. without failure or damage from the high static pressure. The testing was requested on the patented Pro-R system by one of the top HVAC Engineering firms and Hospital networks in Boston. Recent projects include a dorm renovation project at Boston University installed by McCusker Gill and an Elementary School in Newton installed by United HVAC







