12MM PTFE DISK SEPTUM 1000/PK 12020168 (EA)
https://www.knockoutrat.org/shop/rw2-1030-51460-12mm-ptfe-disk-septum-1000-pk-12020168-ea-313039
https://www.knockoutrat.org/web/image/product.template/313039/image_1920?unique=07fba14
This 12MM is guaranteed a 12MM with the use of 1000/PK and directly supplied to your lab by Gentaur's warehouse.
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30-day money-back guarantee
Shipping: 2-3 Business Days