Goulds Marlow Series 3B

The 4” x 3” self-priming, centrifugal pumps for commercial pools. The design includes a large 331 cubic-inch integral strainer with a stainless- steel basket. Available in 5 and 7-1/2 hp sizes, these high-efficiency designs provide maximum performance. Capable of providing an eight hour turnover rate for pools up to 192,000 gallon capacity when used with pressure-type sand, cartridge or diatomaceous earth filters. Maximum capacity: 400 GPM Maximum head: 107 Feet