Is the 1st vital injector needle also can be use on the vital injector 2?

The two version vital injector gun side and outlook design is different.

Besides, comparing with the first generation, the vital  injector 2 needle new add a flap ahead to keep it stable

Plus the upgrade movement and filter, machine work more smoother.

Two vital injector also with different gun base can not mix needle together, so vital injector 1 needle can;t be use on the vital injector 2

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