Hydratron's air-operated gas booster pumps are designed to boost bottled gases including air, helium, nitrogen, methane, and hydrogen. The pumps feature maximum output pressures ranging from 400 psi to 21, 000 psi and maximum compensation ratio of 12:1 to 40:1. The pumps are used for precharging accumulators and down hole tools, or for pressure testing.

Walrus manufactures variable speed, constant pressure booster pumps available with .5 HP to 3 HP. The 230V, single phase pumps feature a maximum flow rate of 38 GPM and maximum boost on existing pressure of 43 psi.

Progressive Pumps Corp. distributes in-line booster pumps manufactured by Webtrol. The pumps feature 5 GPM through 100 GPM, pressures up to 780 psi, vertical or horizontal mounting, and NPT connections as standard.