GX PUMP GX-E-CS4-I PCP Air Compressor,350W Powerful Motor,Max 5800Psi/40Mpa

I love this compressor. I have a paintball tank 3500 psi, pony scuba tank, 2 high pressure 120 3500 psi scuba tanks. This easily and surprisingly quickly fills the paintball tank and the pony tank to 3000 psi. I used the gx filter and it acts as a great filter and stores the pressure at 2000 psi before passing air to start filling your tank. This works much better than I was expecting. For me, it's worth every penny. Oh, and it runs at about 75-80 decibels so not too loud.

Very robust compressor. So quiet and quick. Yes it's expensive, although you get what you pay for.

Wow, this Compressor is awesome, its so easy to set up, (tip: buy some distilled water at the same time, its required for use) Its a solid little unit, i though it was going to be way bigger and heavier than it is. Its so quiet, especially compared to my old Heug Yeug Compressor, which did a great job for 7 years with no hassle. But wanted an all in one upgrade with no buckets of water etc etc. This compressor is quality, customer service from GX has been Awesome as well, I emailed them about a warranty and they replied in less than an hour, and said even outside of the 1 year warranty, we're always happy to help with any issues. It fill my bottle from 200bar to 300 in no time at all and turned off when finished. Its an expensive item but well worth it.

Excellent product excellent service brilliant machine very quiet fills at a nice slow fill thanks again Keith

After a one month wait from ordering it finally arrived along with the dry pack, first impressions, both the compressor and the dry pack look solidly built and impressive (time will tell), A clear hand book and tools are also provided, it was up and running in less than five minutes, it topped up a three litre cylinder effortlessly and was a lot quieter than other compressors I've come across possibly because its also water cooled as well as fan cooled, It can be ran from a car battery 12v as well as 240V, or 110V, leads are provided for both, it is not over heavy and can be moved around easily with the two handles on the top of the unit. The pressure shut off gauge works well and shuts off as soon as the needle hits the pin, in my case 300bar. First impressions are good, hopefully get a good few years air out of it, if not I'll update the review. Only four stars because I've only just received it, time will tell if it gets 5 stars.

Molto bene grazie mille

I owe already CS4 model (without -I, this one is CS4-I). Again a very good product that can work in a long session and effortlessly can reach 300 Bar, the pressure I need for my PCP gun. This model produces less noise and has 220 V power supply integrated in the unit, so no external one is needed. You can also connect 12V directly to the unit, the same as for CS4. I am happy with both products.

Testé dès sa réception... excellent compresseur PCP. Très peu de bruit, pas de vibration, gonflage rapide même avec ajout d'un filtre annexe. Systèmes de refroidissement et de graissage très ingénieux. Son chronomètre de temps d'utilisation total intégré est super utile. Contrairement à d'autres marques de compresseur que j'ai pu posséder, on sent de suite une qualité du produit bien supérieure. Produit recommandé d'autant qu'en ce moment (Avr. 2026) on arrive à l'avoir avec une remise d'environ €70.

Deze compressor is voor een compressor van dit formaat zeer stil en je kunt gewoon je gesprek met voortzetten als er natuurlijk iemand bij je is wanneer je het geweer gaat vullen. Deze compressor gebruik ik om mijn 6.8liter fles te toppen elke keer van ongeveer 200bar naar 330bar en daar heeft deze compressor totaal geen moeite mee en ik heb 2 extra temperatuurmeters opgezet en wel op beide leidingen van de koeling om gewoon zeker te zijn dat te temperatuur goed blijft en de temperatuur van de koeling komt niet boven de 40graden tijdens het vullen van de fles. Dit is echt een zeer fijne compressor. Een belangrijke tip voor alle gebruikers, gebruik wel een extra filter en plaats deze dan Vertikaal want dat kleine filterunit wat er standaard bij zit is niet voldoende.

C'est un super compresseur, rapide, silencieux et de bonne fabrication.