Hapi, if you've got something like a WalMart with a sports section, they're usually cheaper than a marine chandlery
But those 12g flares? If you've ever seen them being shot off, they're really unimpressive. I've seen cheap
fireworks outperform them.
The hand-launched "rocket" flares, each in a separate tube, work
MUCH better. And if you're carrying them for safety
rather than rule
compliance, the SOLAS-rated flares make all of those look like kiddie toys.