Simple, versatile, sophisticated, reliable. The A.Y. McDonald DuraMAC 1 1/2- to 3-HP vertical multistage variable-speed simplex booster is capable of up to 140 psi and 40 gpm. This pump changes motor speed based on demands of the system, allowing users to save energy costs over traditional constant speed booster systems, A.Y. McDonald notes.
A.Y. McDonald vertical multistage variable speed pump
