A modular fluid pump including: a pump motor that provides a motor force, a sealed housing cartridge removably coupled to the pump motor, wherein the housing cartridge is interchangeable with a replacement housing cartridge, a frame enclosed in the housing cartridge and having a plurality of rollers arranged on the frame, a drive coupling means for transmitting the motor force from the pump motor to the frame thereby inducing rotation of the frame, and a fluid conduit, wrapped under tension around at least one of the plurality of rollers, that facilitates fluid flow from an inlet region of the fluid conduit to an outlet region of the fluid conduit. Rotation of the frame causes the plurality of rollers to compress the fluid conduit at subsequent intervals, thereby driving fluid to the outlet region with a peristaltic movement.
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