II 2 Replacement Cartridges by Pet Convincer

Gets the dog’s attention quickly. Once you start to screw them in be sure to do it all the way in and keep them straight. Especially when it starts to get snug do it quickly until it stops and you can’t turn it any more.

Fast delivery and no complications. Makes running a doggie daycare much easier!

Despite being prominently advertised as fitting the Pet Convincer II, these do not, in fact, fit the pet convincer 2. All but 3 of them immediately started leaking/discharging despite not pulling the trigger, and drained completely no matter what I tried to get it to seal. Of those 3 which did not immediately discharge, 1 started leaking after one or two uses, another one is a non-threaded CO2 cartridge so it won't even fit in the Pet Convincer at all, and I just fit the 3rd one in but haven't tried it yet, so we'll see how it goes--though I'm not optimistic. Overall, with an at-best 10% success rate, I'd say this was a complete waste of money.

Stop paying the high prices that Coravin charges. Just save the top black screw on attachment that comes from Coravin and screw it on to these cartridges.

Not sure if it's my dog, but he totally ignores the air unless I put it in his face and even then he barely reacts. My son uses it to clean his computer, so it's not a complete waste! I gave it 4 stars as I can't blame the product for a misbehaved dog. He's a rescue and had 8 years of who knows what kind of abuse at a puppy mill. I had hoped this would help snap him out of barking like a nut when the doorbell rings or a door opens.