This B‑interface nozzle is a precision replacement accessory for GluBud needle-free injection pens. It fits tightly to the pen body, preventing air and liquid leakage for accurate and reliable dosing every time. Constructed from safe, durable materials, it is easy to replace and maintain.
Compatibility Note: The B‑interface is fully compatible with all C‑interface cartridges and can be used interchangeably without additional adapters.





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