The Glas-Craft Maxi Dispensing System sprays or pours a maximum of 14 lbs./min. of polyurethane foam. The Maxi System features the trouble-free, automatic air-purge Probler Gun. The Probler Gun, with a flat spray tip standard, is easy to use and maintain. A 48-foot heated hose assembly, with nylon protective sleeving is also standard on the Maxi unit. Two positive displacement pumps are connected to one five-inch air motor to ensure the proper mixing pressure (1,600 psi) and ratio (1:1). The fluid pumps are fed by an easily installed Gravity Feed Kit

....designed for spraying or pouring polyurethane foam for insulation, cavity filling, flotation, or structural reinforcement.