TP 4000 The TP 4000 is a high performance and versatile peristaltic pump. The pump is available with roller sizes to match either 2.4mm wall tubing. A set of replaceable inserts secures the various tube sizes firmly in position. The hinged lid forms an integral part of the pump construction and the use of a tube replacement lever facilitates the replacement of tubing. The lid can be removed completly for tube replacements in tight assembly spaces. These pumps are not suitable in conjunction with life support equipment or any in-vivo application.