Hach UniVer® 3 Hardness Reagent, 28 g, 21320HBy Hach $21.65 | EA Quantity discounts available QuantityPriceProduct #: 702691Mfr. Part #: 21320HOut of Stock - Ships in 13 Days Quantity -+ Add to Cart Add to List Add to My List Or: Create a New List Create and Add Item Free Ground Shipping On All Orders Over $1500!*Conditions Apply* Details Description Combined indicator and buffer for determination of total hardness by titration methods. 28 g bottle. DetailsBackDescription Combined indicator and buffer for determination of total hardness by titration methods. 28 g bottle. Documents Safety Data Sheet California residents see Prop 65 WARNINGS