1/2 DD Barb bottom thread to O-Ring 6.5mm, Total Thread length W/ O-Ring 10mm
1/2 Koolance Barb bottom thread to O-Ring 3.5mm, Total thread lenght w/ O-Ring 4mm
Koolance Barb is designed to not penetrate the top of the block. (.5mm Clearance)
DD barb not designed for Koolance block, Penetrates the top of the block (4.5mm) and actually enters the "water chamber" with 2mm threads, Leaving just 2mm (50%) of clearance above the pyramids.
All this assuming an ideal condition where you don't have to squish the O-Ring :P
Im going to have to test this one to see how it effects Performance/Flow
Now only if there was a sponsor for some flow meters
