2 LAYER CARTRIDGE COLUMN (C=3%,8%, 0,4G PACKING)
https://www.knockoutrat.org/shop/rw2-5010-29711-2-layer-cartridge-column-c-3-8-04g-packing-313094
https://www.knockoutrat.org/web/image/product.template/313094/image_1920?unique=07fba14
This 2 is guaranteed a 2 with the use of (C=3%,8%, and directly supplied to your lab by Gentaur's warehouse.
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30-day money-back guarantee
Shipping: 2-3 Business Days