Light Duty GX Pump
GX Pump CS1-I
4,500 PSI max · Fan-cooled
12V120V220V Auto-stop
Compact fan-cooled 4500 PSI unit with a built-in power adapter. Runs on 12V, 110V or 220V. Made for filling airguns directly.
GX Pump CS2
12V fan-cooled 4500 PSI compressor with a 110V converter in the box. Manual shutoff: no auto-stop.
Overview
The CS2 runs natively off a 12V car battery. A 110V-to-12V converter comes in the box for use at home. It uses a 250W motor, reaches 4500 PSI (300 bar), and runs oil-free with fan cooling, so there's no water bucket. It weighs 6.7 kg (about 14.8 lb). An extra oil/moisture separator ships in the box but is not installed. GX says to install it yourself (there are YouTube walkthroughs). Important: the CS2 is the manual-shutdown version. It cannot be set to stop at a target pressure, so you have to watch the gauge and shut it off yourself. GX designed it for reservoirs under 60 cubic inches and recommends against filling anything over 1L. Output is M10x1 with an 8mm quick connector.
"Airguns only, and stay with it while it runs. No auto-stop means you watch the gauge. If you want to walk away during a fill, get the CS1-I or a CS3-I instead."
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4,500 PSI max · Fan-cooled
12V120V Auto-stop
12V fan-cooled 4500 PSI compressor with auto-stop and a built-in oil/water separator. 110V converter included.
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4,500 PSI max · Fan-cooled
12V120V Auto-stop
The CS3 with the 110V converter built in. 4500 PSI, auto-stop, built-in oil/water separator.