davarle

Berty tube caps

33 posts in this topic

Check this out.  The BOOST brand protein drinks have an excellent cap that is knurled.  I hand tightened one and held it under water and no bubbles!

 

Berty-tube-Boost_zps8fde36f0.jpg

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i received 2 berty tubes from the octoberfest grab bag that had boost caps on them.  i'm not a drinker of it myself, but if i find someone who is, i know i can take them.

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Check this out.  The BOOST brand protein drinks have an excellent cap that is knurled.  I hand tightened one and held it under water and no bubbles!

 

Berty-tube-Boost_zps8fde36f0.jpg

 

I hope you're right about this. The boost caps thread great but i've noticed that they do not screw all the way down. The flange on the tube itself keeps the lid from screwing on all the way. But since you did test it, i'm hoping this doesn't make any difference.

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They tighten down and then click I've discovered, but when tightened down before the click, the ONE I tested worked. If an O-ring was stretched over the top, it would probably be bullet proof.

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