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<p>[QUOTE=&quot;desertgem, post: 3055030, member: 15199&quot;]On the bottom of the tube there should be a triangle with a number inside, that is the recycle number and indicates what it is made from. Numbers 2 and 5 are the numbers for the safest plastics and the structure to be rigid tubes. Numbers 1 and 4 are safe, but not the rigidity for tubes usually. 3 is PVC and probably safe in short term if it a rigid structure with no plasticizers.&nbsp; Jim</p><p><br /></p><p><a href="https://www.thebalance.com/what-recycling-symbols-mean-4126251" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://www.thebalance.com/what-recycling-symbols-mean-4126251" rel="nofollow">https://www.thebalance.com/what-recycling-symbols-mean-4126251</a>[/QUOTE]</p><p><br /></p>

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