Quote Originally Posted by moogle View Post
Yeah, they stay on without clamps better on Swiftech/D-Tek Hi-Flow barbs. Last one I pulled off the inner tube layer sliced off with the barb

So pretty good barbs for 7/16" no clamps
Do you think it has got to do with its larger size?

http://www.sidewindercomputers.com/big1sishfifo.html

When compared to other standard 1/2" fittings, the outlet ID is 12 millimeters, 2 millimeter larger than standard.