20MM PTFE/ BUTYL RUBBER SEPTUM (9301-0976) 100/PK (EA)
https://www.taacf.org/shop/rw2-1030-46307-20mm-ptfe-butyl-rubber-septum-9301-0976-100-pk-ea-313138
https://www.taacf.org/web/image/product.template/313138/image_1920?unique=07fba14
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This 20MM is guaranteed a 20MM with the use of SEPTUM and directly supplied to your lab by Gentaur's warehouse.
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30-day money-back guarantee
Shipping: 2-3 Business Days