12MM PTFE/SI/PTFE SEPTUM 1000/PK 12020463 (EA)
https://www.forenap.com/shop/rw2-1030-51467-12mm-ptfe-si-ptfe-septum-1000-pk-12020463-ea-313042
https://www.forenap.com/web/image/product.template/313042/image_1920?unique=07fba14
This 12MM is guaranteed a 12MM with the use of 12020463 and directly supplied to your lab by Gentaur's warehouse.
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Shipping: 2-3 Business Days