PrimoFlex Tubing Review
 

PrimoFlex and is a silicon-base tubing which means it has all the same qualities, but is much softer and therefore more flexible. In addition, PrimoFlex tubing is available in 3 UV reactive colors. Clear, which glows a slight purple in UV light, green, and blue. The green and blue are opaque so that they retain their color under regular light, which means no more need for dyes.

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