Buffer C5 Concentrate (25 mL)
https://www.manchesterbeacon.org/shop/rw2-740931-buffer-c5-concentrate-25-ml-331840
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This Buffer is guaranteed a C5 with the use of Concentrate and directly supplied (25 to your lab by Gentaur's warehouse.
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30-day money-back guarantee
Shipping: 2-3 Business Days