CXWXC 16g / 25g Threaded CO2 Cartridges or CO2 Inflator for Bike Tires - Cartridge for CO2 Inflator with Threaded Connection, CO2 Pump for Road and Mountain Bikes

I used these for testing my Onyx M-16 life vest. I wanted to keep the original equipment manufacturer OEM cylinder for actual emergency use, but these cylinders are PERFECT for testing my equipment to make sure that my life vest is free from holes and that the actuator works. Worth every penny! I swap one of these cylinders in for testing, go out in the lake and tried this so that I knew what to expect when I pull the cord in case of emergency. Once back on land, I dried out my life vest, repacked it and installed the OEM cartridge (and re-arming pin). For this purpose (testing) these cylinders were completely indistinguishable from OEM at a fraction of the price of OEM.

Seem to be quality spare standard CO2 cannisters for my bike pump.

Using them in a inflatable life vest. Seems to work fine. I weighed them and they weigh correctly as well

The 16 gram ones are WAY cheaper than the 25 gram ones gram for gram! Like half the price per gram!!

I bought these for my planted aquarium’s first co2 system, and they fit perfectly! I recommend using 1 bubble per second or the cartridge will run out in less than 6 hours, I’m already on my second one and it hasn’t even been a full day.. but after figuring it out I’m confident that it will last for a little over two weeks!The metal is high quality and sturdy, the threads are as they should be. My plants seem to be responding to this co2 already! I bought this as an emergency replacement after my first co2 cartridge leaked everywhere, and I personally would not buy again as it’s not worth it in the long run.. but this is great if you need co2 on a budge!

perfect for bring with me on my bicyclethank you

Nice for travel bike bag to repair flats.

we purchase this to re-arm our onxy m16 life jacket. Tested and I confirm that it works exactly good as the OEM one, which is $16 per cartridge