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🧪 Seal the deal with every injection—precision, durability, and reliability in one pack!
LabZhang’s 20mm Self Healing Injection Ports come in a bulk pack of 100, crafted from high-grade butyl rubber that self-seals after each puncture. Designed for 0.51 inch jar openings, these ports offer excellent thermal stability, allowing steam sterilization without deformation. Perfect for sterile liquid cultures, substrate injections, and grain master jars, they combine durability with reusable convenience to streamline your lab or cultivation workflow.



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