Infusion pumps are usually the most expensive component of infusion systems. Whether confronting a study with a large number of animals or running your first infusion study, it is not always possible or cost effective to purchase new pumps.
In these situations the best option may be to rent the pumps you need for the duration of the infusion. Renting allows you to cover pump expenses from the operating budget and avoid making a long-term purchase to meet a short-term shortfall.