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⚡ Inflate Faster, Work Smarter, Stay Ahead!
The California Air Tools CAT-AUX05A is a 5-gallon, rust-resistant aluminum auxiliary air tank designed for professionals who demand portability and reliability. Weighing just 10 pounds, it features a universal 1/4" quick connector and delivers stable pressure up to 125 PSI, making it perfect for tire inflation and pneumatic tool use. Its lightweight, compact design and durable build ensure you stay efficient and ready on the go.






| ASIN | B01G75OUTI |
| Additional Features | Portable |
| Best Sellers Rank | #131,346 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #420 in Air Compressor Accessories |
| Brand Name | California Air Tools |
| Capacity | 5 Gallons |
| Color | Silver |
| Compatible Hose Diameter | 0.25 Inches |
| Customer Reviews | 4.4 4.4 out of 5 stars (533) |
| Global Trade Identification Number | 00743369705109 |
| Hose Length | 48 Inches |
| Included Components | Air Tank & Air Hose |
| Item Type Name | Auxiliary tank |
| Item Weight | 4.54 kg |
| Manufacturer | California Air Tools |
| Material Type | Aluminum |
| Model Name | AUX05A |
| Model Number | CAT-AUX05A |
| Power Source | Corded Electric |
| Recommended Uses For Product | Power Pneumatic Tools, Tire Inflation |
| Style | Aluminum Tank |
| UPC | 743369705109 |
| Unit Count | 1 Count |
C**E
When I picked the box up from the porch, I knew that I'd be glad that I bought this tank. I've owned steel air tanks in the past, and while I did expect this one to be lighter than them, I was surprised just how much so. Another pleasant surprise was the additional stabilizer on the bottom of the tank. Rather than having only one, as shown in the first five photos, there were two, as shown in the sixth photo of the tank near a compressor. I did quick leak test--admittedly for only a few hours--but the pressure was still there with no loss. Also, I like the form factor: longer and smaller in diameter than typical tanks of similar capacity. This is my second purchase of a California Air Tools product, and it probably won't be my last.
O**A
So far, this is a fantastic tank. Being made out of aluminum it’s dramatically lighter and easier to casually throw around and bring from place to place. The shipping box it came in, was well packed, extra thick cardboard with straps and plenty of foam reinforcements. I’ve seen some complaints about the quality of the brass fittings. They do look kind of thin walled. I’ve been trying hard to not bump them very hard since that three-way contraption sticks out quite a bit. Even if I do end up, breaking the weakest looking tee fitting off, it’s just standard 1/4”fittings, everything except the on/off, Schrader, pressure, relief, gauge all in one manifold and it actually looks pretty well made.
D**H
This air tank is well biult
B**.
met my expectations just fine. I wish in a way I had got the aluminum rather than the steel for the light weight but I guess the steel will hold up longer. works just like it is suppose to. filled it with 100lbs of air , brought it home and pumped up both bike tires . no problem. It's all steel so the most that could go wrong is with the fittings and they can be replaced. Soooo, all is good. thanks
H**A
Me gustó ya que aumenta la capacidad y es portable
Trustpilot
4 days ago
2 months ago