Flux offers two basic kinds of pumps: barrel and container pumps, and the Juniorflux. Different styles of barrel and container pumps are offered to function in median temperatures anywhere between 20 and 60 degrees Celsius; other choices include mechanical seal or sealless; pumping, 99.98% barrel emptying, or mixing and pumping; and built-in liquid meters, fume glands, and mounting systems. Most of the same options exist for the Juniorflux, which is a lightweight pump for dispensing small amounts of liquids out of narrow-necked containers.