I own the Innovations microflate system,and I’m looking to buy some inexpensive 16 G threaded cartridges.

Can I use any threaded 16 G threaded cartridge,or do I need to buy the Innovations brand ?
One brand I saw was the “Z-AIR”(below).

Thanks
I would guess that the threading is a universal size. I have bought replacement cartridges without any problem and buy whatever is at the local LBS, never worried about getting innovations brand.
catmandu,
One 16 gram threaded CO2 cartridge is the same as the next except for any miscellanious paint, wrapper, rubber coating, etc. on the outside. Some of this is “added value” to help reduce the freezing effect of discharging the cartridge.
Short answer, you can use any brand.