Abstract: A peristaltic pump has a compressible tube curved about ninety degrees around a rotor with four sets of slider arms having rollers at their outer ends extending slidably radially out from the rotor with the sliders being spring-biased outward to cause the roller to compress the tube against the pump housing when they come in contact with the tube and having linkage in the rotor between the radially extending sliders so that all of the rollers extend radially out the same distance from the rotor. A portion of the housing is hinged so that it can be swung open to provide ready access to the interior for quick and easy replacement of the compressible tube and spring-biased clamps hold the tube in place when the hinged housing section is closed and latched shut. The clamps can accommodate various sized tubing.