A.Y. McDonald’s new 1 1/2- to 3-HP DuraMAC vertical multistage variable-speed simplex or duplex booster system is an addition to the existing product line, adding the capability of pumping up to 140 psi and 80 gpm. This solution not only comes with an easy setup installation and one-year warranty, but it also includes a stainless steel pump and base. In addition, the motor speed changes based on demands of the system, which allows the user to save energy costs over traditional constant-speed booster systems, the company notes. A.Y. McDonald. www.aymcdonald.com