20d (edited) • General discussion
Follow-up to live stream info from 1/24/2026
Here is an article/post/blog discussing the meanings of markings on plastics...
This second link pertains to the plastics and tubing specifically for use in hydroponic grow systems and DIY builds as well as coatings, sealants, epoxy, glues, etc...
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Follow-up to live stream info from 1/24/2026
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