PolarFlo TT Chrome GPU Block Review
 

A nice change from the SF blocks to the TT series is the barbs. The SP blocks came with plastic barbs that were designed so that when they were installed it created a seal by deforming the threads. This made it so that the barbs could not be removed without having to be completely replaced. Well, it seems Steve and the gang at PolarFLO listened to our pleas and did away with the plastic barbs. Now they offer chrome plated Posi-seal barbs which have an O-ring right on them and create a nice seal, and can be removed as many times as you want.

Direct Link: http://www.gruntville.com/reviews/wc..._TT_GPU_Block/