PRESERVINO PWS-G ARGON CARTRIDGE, PK PRESERVINO PWS-G ARGON CARTRIDGE, Set of 8

The dispenser only works for couple of months then the seal goes bad and the gas escapes the cartridge in a few minutes after you install it in the dispenser. I have purchase 4 of these and they all fail. I'm done with Presevino unless they can solve this problem. When it works, my wine lasts a week, so the concept is a good, but the execution is a failure

I use these in a special wine preservation system and they work just fine.

cartridges are wrong ones do not have black head gas leaks out