Buy Boiler Feed Pumps Direct and Save! Pump Products carries a wide selection of Hoffman Specialty Series boiler feed pump units to provide precise water level control in modern steam boilers. Units are available in 30, 50, 100 and 200 gallon sizes and include gauge glass assemblies and mechanical make up valves. Each motor features overload protection and stainless steel shafts. A dedicated pump control responds to water level changes in the boiler. Every Hoffman unit is factory tested.