3L 4500psi Carbon Fiber Air Tank & Fill Station for PCP Paintball Scuba SCBA（Empty Bottle） (Red Gauge Tank Kits)

I have two IORMAN tanks; a 3L and a 6.8L and in a few months I will also buy a 9L tank. The 3L tank is not DOT-certified but carries an EU certification so I'll use it for three years then buy another (I can't find anyone willing to hydro test it). The 6.8L tank is DOT-certified and I had my initial fillup done at a SCUBA shop. The 3L tank comes with a luminous manometer (gauge) with x10 bar units and is rated for 310 bar. The manometer on the 3L tank stuck on the first full fill, but after my SCBA pump came in, I completely emptied the tank, tapped the gauge, and have used the tank and refilled it several times since (I use the tank for airguns, as a portable air tank for filling tires, and also for dusting tools and computers) and the manometer has been working fine so I write that off as a fluke. The manometer on the 6.8L tank is not luminous, but it is wrapped with a luminous band around the tank (good for SCUBA and SCBA use, or nighttime hunting). The 6.8L tank is very good, and I like the regulator design better than the one on the 3L tank, but the manometer is different; the units are PSI, and it was the first tank I filled with my SCBA tank. I set it to 310 bar and walked away, then when it stopped I came back, shut the regulator, and bled the air out of the line.. then I went to pick it up and RAN... the gauge read 5500psi! I was nervous AF. However, if they're going to fail, SCBA tanks fail on inflation, not deflation, so I let the tank lie where it was and cool for a while in the garage, then went back and checked on it. I connected a hose with a plug to the regulator, opened the valve.. and the gauge shot up to around 5300psi. I bled the air out. It wasn't going to fail on inflation so I went ahead and used it as-is. The next time I filled it, I kept a very close eye on the pump until it hit 300 bar, and checked the gauge on the tank - yes, it was reading almost 1,000 PSI high. I then let some air out, connected the 6.8L tank to the 3L tank, and relaxed; the pressure leveled out just under 300 bar, but the gauge on the 6.8L tank was still reading over 5,000 psi. The manometer reads way high so it is faulty and needs to be replaced. Deducting only one star for that, because I'm having to order a manometer from China. Overall I am very happy with the tanks and the regulators, and I know IORMAN would replace the manometer on the 6.8L tank but I want a luminous one in BAR units since that will match the other tank, the pump, and the guns so I can trust nontechnical friends with the gear thanks to consistent units across all the equipment. On the 3L tank I deducted one start on value for the money, due to the lack of a DOT certification; in the US no one will hydrotest it, and few shops will fill it with just the EU certification. So, if you don't have a SCBA pump, you could be out of luck with no way to fill it, and since you can't get it hydrotested, you'll need to discard the tank after three years.

Bottle seems very well made and easy to assemble. No leaks. The only complaint is the gauge on the fill valve reads almost 1000 lbs low. When I filled it for the first time with a 4500 lb compressor, the compressor ran for a long time and the gauge on the tank never moved. The compressor gauge was moving up and showed 800 lbs. It scared me so I shut the compressor off and opened the valve on the tank. Sure enough there was air in it but the gauge read 0. I continued to fill the tank and finally the gauge started to move on the tank. When it read 1000 lbs I stopped the compressor which was reading 2000 lbs and filled my gun. The guns gauge also read 2000 lbs while the tank read only 1000. I have been using the tank now for a couple of weeks and love the ease of use and the convenience of turning a valve to fill my gun. Just know you can't trust the gauge and anyone using this tank should verify the accuracy of their gauge so damage to their gun or themselves does not occur. Add on 3-13-2022 The Foster fitting attached to the vale started leaking while filling my gun. It looks like it has become deformed from the high pressure. Just know this is a wear item and you're going to have to replace it eventually. Tank is good quality. Hasn't killed me yet.

Very nice. Works great. A must have for air rifle for the shooting range

No problems with the tank. The vendor, however, should not be selling this product. They lack a grasp of english which is critical when selling a 4500 psi pressure vessel in the US. Understanding the components of your product is critical when corresponding with a customer, particularly when that product may kill you if used improperly. They don't provide instructions with the product. Here are a few tips - They call the valve a regulator - it is not a regulated tank. It has NO regulator. It is simply a valve. A huge difference. The black valve is for bleeding only. The red knob with gauge will feel loose until there's pressure in the tank.

Good value for a large tank capable of handling 4500 psi. Don’t forget to locate and install the included o ring when attaching the valve assembly. A basic assembly schematic along with the o ring spec would be useful but no big deal . I was able to pressurize to 4500 psi with a Yong Heng compressor . This took approx 30-35 minutes. So far no leaks and looks good !