Yes it is just a thread saver like any other but with most of the other brands I've found them rough or even sharp on the inside. These are smooth so they won't damage the thread on your tank.
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0 of 0 people found the following review helpful:
Nice product
March 8, 2011
Reviewer:
Craig Galbraith
from Benoni, Gauteng South Africa
Great little product from Custom Products to protect your tank threads when in transit. Well made and comes in a variety of colors to match your marker or tank if you like.
Great product 
