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Old Jan 16, 2013, 01:02 PM
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USA, UT, Orem
Joined Jul 2004
9,917 Posts
I use #12 and #15 plumbing O-rings from Home Depot for the pushers but I don't use prop savers on the big motor pullers. The puller props like to come off and go shooting into space.

I have also cut surgical tubing into thicker bands that work but I think the O-rings are easier and stronger.
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