Multiple Compression Units

Note -- Impco has purchased FuelMaker's assets and as their website states, "BRC FuelMaker is committed to the continued production and support of the VRA and PHILL product lines. Both product lines will be back on the market in the near future."
FuelMaker's multiple compression units are generally used by small-to-large businesses, and government for refueling. Like a single compression unit, it compresses natural gas from your home line into the tank of your vehicle (but faster). Federal (and possibly state/local) incentives exist for the purchase and installation of a new multiple compression unit.
Two models exist with these specifications.
