5/16" Black End of Line Hook 
The new line of 5/16″ MaxFlow fittings was specifically designed and developed for maple syrup producers who want to operate over 25 in-hg (high vacuum).
Even at vacuum levers higher than 25 in-hg these fittings will not leak!
Some advantages are:
* No parting lines on the first barb
* Better grip on the 5/16″ tubing
* Precise molding
* Eliminates micro leaks
