Bottle Cap Hose Barb 3.0

Fixed barbs not sealing under pressure with tubing. Tested with no leaks, no barb breakoffs, everything working fine.

I use one or two of these to ensure the bottle to cap connection doesn't leak under pressure http://www.aliexpress.com/item/1000-Pcs-Mechanical-Black-NBR-O-Rings-Oil-Seal-Washers-24mm-x-22mm-x-1mm/32334703163.html?spm=2114.13010608.0.89.MlpBNa they are 24 x 22 x 1 mm o rings.

Changed outer tubing to 1/2OD 3/8ID Tubing. Reinforced barbs to help with barb breakoffs (at the c