- GPI Thread Finish: 18-415

- Shell Material: Polypropylene

- Liner Material: 14B Rubber

- Cap Color: Black


Magnakoys® 18-415 Continuous Thread Closure w/ 14B Rubber Liner.
Black Caps Fits our 20 mm screw cap test tubes.

*See our images for explanation on how to fit caps to vials.

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