Polarflo Barbs

Hi all,
I'm trying to find out where I can buy spare barbs for polarflo TT waterblocks (1/2"), the manufacturer still hasn't replied.
If anyone knows, please post,
Cheers

Is there something special about them?

Normal G1/4 thread 1/2" barbs not do?

Well they call them Posi-seal, and I heard they're really good (not exactly sure why), but if others will fit then to hell with it. Anyone know if other brand barbs will fit polarflo TT waterblocks?

Probably best to email polarflo, or whoever stocks them and ask.

As long as it doesnt leak, a barb is a barb isnt it?