Incorporating a backward curved design, the companyÕs Backward Curved Impeller Blowers are designed for limited-space applications where high air flow is required and performance must be at a level to overcome high static pressures. Available constructed of plastic or galvanized steel, the blowers feature an external rotor design and ball bearing motors. Rated for use at 115V and 230V, 50/60Hz and 24 Vdc or 48 Vdc, they come in a wide range of sizes and capacities and are UL, VDE and CE approved. For further information and prices, call KOOLTRONIC INC., Pennington, NJ. (800) 321-5665.