GX PUMP GX-E-CS4-I Portable PCP Air Compressor, 350W Powerful Motor,Max 5800Psi/40Mpa, Built-in Home Converter, Water and Fans Cooling, 5 Hours Continous Work, 12V Auto Stop Paintball Air Compressor

At first, I was planning on getting one of those many $200'ish pumps readily available on Amazon. Many even look a lot like the $500'ish ones reputable airgun supply companies sell as their entry level "branded" recommendations. Upon further research, I decided to spend more to get significantly better specs and happy that I did. This one lists a MUCH longer run times (like over 5 hours, the others are like 10-15 minutes at a time), so it CAN fill bottles (still skeptical so not likely to be used as such for me). It is also significantly quieter (based on online reviews and videos of the others). Its noise is literally a FRACTION of even my regular air compressor for cars. It doesn't come with a temp gauge, like many of the other cheaper versions, but this one is water cooled - so it probably doesn't have a heat issue (definitely not even getting "warm" from my own uses). I'm not sure if it comes with a water filter (claims to have one internally) so I got a separate filter (from them). Specs are overkill for my intended uses (direct fill of air guns), but my gun has a max fill capacity of 3 bars, and this one actually is capable of going to 4 bars (the cheaper ones are all 3bars). This might have been the only one I've found that is specced to 4 bars at this price point. Works exceptionally well, doesn't rattle like its overworking itself, is quiet enough to use in the house, and appears to have a good build quality. I think the cheaper ones may be a good alternative to the hand pumps (some actually costing the same surprisingly), but this one appears to be built to last a bit longer (especially if intended to be used casually like I am). Replacement parts seem to be available (but at this price point, I wouldn't be disappointed to have to replace after several years of use). I did have an issue with the water filter I bought separately (hookup error) and the support was immediate, real time, and helpful (same company), so the company has some credibility as well.

I purchased this as a backup for a model just below this one. I have about 50 hrs run time on the old one when I blew out a pressure disk. I changed out the disk but had poor performance so I decided to try this new unit. Wow, it is quieter and seems to pump just as well or better. I use this at home, so no need to hook up the transformer like the old unit. Later went back to trouble shooting the old unit and found some seals on my service line and connectors had blown. Replaced seals and now have 2 excellent compressors. So when performance starts to decline, check your service line seals. They will probably be the first thing that fails on this well made compressor.

Buy from GX Pump via official sources with CONFIDENCE, they will stand behind their products. I have already ordered their new high pressure filter system because I trust them to do the right thing when a need arises. Pump works great had a small problem solved quickly by GX pump with a Control Board replacement. Pump builds pressure well, quiet in operation, slow fill rate does not over heat. I have worked on high pressure air and NITROX systems in and out of military. The number one enemy of compressors pumps longevity is excessive heat. This unit controls heat buildup well. Use this unit within its designed duty cycle and I am sure it will provide a long service life before rebuild. I ordered a pump on 27 March 2025 it arrived and would not run for a very long and shut down. It was tried with many options as per technical support via GX Pump. The unit-built pressure on deadhead tests just would not stay running. The failure mode did mode did not match the symptoms of the trouble shooting steps. This was an out of box failure and GX Pump thru its Amazon Official Sales Point replaced unit very quickly. I knew the reputation of these pumps were of high quality and like all factory-built items a poor example slipped thru. The replacement unit arrived quickly via Amazon 4 April 2025 I unboxed it and ran it. The unit had the same build date on tag as the first unit, still I had high hopes. No joy, same indications. Shutdowns happened running on 110 VAC and on 12 VDC. GX Pump Technical support tracked it down quickly to a Control Board (the only common failure point of both voltage modes.) This only affected one supplier Control Board and GX Pump sourced Control Boards that are another supplier (different design see pictures) and sent them out quickly. GX Pump also posted a video instruction on installation quickly.

nice and quiet vs others I have used. it sounds slow but fills faster than my old spritech which died after 4 years of hard use. the spritech was loud and slow but was way cheaper. sounded like a jet plane taking off. the gx cs4-i is way better liquid cooling is a plus and super quiet vs the spritech. so far its been reliable and fast filling a 36/4500 ci tank to 3000 psi in 14min. 24min to fill 68/4500 ci tank to 4500 psi from 1000psi the spritech choked at around 3800 psi. things i didnt like was i had to flush cooling system as there was junk in it from the start like old scaling not sure what it was but it needed to be flushed. second thing is lack of temp gauge. would be nice to know how hot the liquid is for the cooling system. lastly i dont like the fact that the power cord plugs in the front of the machine. i think it should be in the back. overall its a solid machine and works well

Hatte zuerst eine defekte Version erhalten, der Austausch verlief jedoch problemlos. Der GX PUMP GX-E-CS4-I überzeugt nach dem Austausch durch seine solide Leistung und einfache Handhabung. Der Kompressor ist tragbar, lässt sich gut transportieren und ist schnell einsatzbereit. Besonders hervorzuheben ist, wie leise der Betrieb im Vergleich zu anderen Kompressoren ist. Die Verarbeitung wirkt robust, und die Bedienung ist unkompliziert. Für PCP-Nutzer, die einen mobilen und leistungsfähigen Kompressor suchen, eine klare Empfehlung. Preis war am 11.10.25 594,15€.

Soooo glad I bought this compressor! In recent months I've bought three different budget level compressors and had problems with each of them (wouldn't work, or did but abruptly stopped working etc.) and so returned each of them; which I really don't like to do as it takes added time and energy. So I decided to spend the extra money on this one, hoping for the extra cost there would be no more issues... and I was right! Three or four times more expensive than the others but definitely worth it to have ZERO issues! Works like a charm. Highly recommended.

Goed verpakt. Snelle verzending. Geluids niveau is lekker stil. Tot 400bar.perfect. Thx seller

Molto bene grazie mille

Es un exelente compresor para trabajo pesado llena muy rápido y es muy silencioso