The best known name in booster pumps, the Haskel. I do not see a model number on this unit, however I can tell it is a double action pump, meaning it is compressing gas in both directions as the piston moves back and fourth... which means its twice as efficient as a single action pump. Awesome machine for custom blending trimix, CCR fills, you name it. Pump is sold without the whips/hoses. Setup to run off of an LP shop compressor gas supply quick connect. Digital gauge on the output side and analog gauge on in put side. This pump is a beast.
