We offer 4"" hydraulic pump heads with flow rates from 750 to 1,000 gallons per minute (GPM) and 3"" to 3.5"" solids-handling capabilities. They come equipped with adjustable wear wiring, run-dry capable oil-lubricated seals, a compact design and a variable speed hydraulic drive that provides a wide performance range. This versatile pump head has various handy uses, capable of being used as a booster pump or bolting directly to pipelines.