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OFFER :::--- Do not forget to ask JUMBO PACK OFFER ( TK - extra pack ) BUY 2 - GET 2 FREE TK extra pack
REAGENT & APPARATUS: Reagent: RXSOL TK 1 , TK 2 , TK 3 , TK4 . Apparatus : TEST TUBE , Titrator or DROPPER. VIDEO Help : https://www.youtube.com/watch?v=p_IgKoO49iE