What is a key characteristic of roller pumps?

A key characteristic of roller pumps is their ability to produce high pressure for handgun applications. Roller pumps operate by using rollers that move liquid through a chamber, creating pressure. This design allows them to effectively spray pesticides and other liquids at high pressures, making them particularly useful in scenarios that require precise and powerful application, such as when using a handgun sprayer.

While roller pumps can be found in a variety of applications, including certain agricultural and industrial uses, their primary strength lies in their pressure capabilities rather than being specifically inexpensive, suitable for emulsions, or uniquely used for aquatic applications. The absence of these factors underlines why the characteristic related to pressure generation is recognized as a critical feature of roller pumps.