Core & Main Copper Sulfate-Sulfamic Acid Inhibitor, 1 LBy Core & Main $38.45 | EA Quantity discounts available QuantityPrice1 – 1$38.452 – 5$37.496 +$36.53Product #: 706981Mfr. Part #: CU7975-QOut of Stock - Ships in 8 Days Quantity -+ Add to Cart Add to List Add to My List Or: Create a New List Create and Add Item Learn more about Core & Main chemicals and reagents for your everyday water quality testing.Free Ground Shipping On All Orders Over $1500!*Conditions Apply* Details Description Copper Sulfate-Sulfamic Acid Inhibitor, 1 L. Features APHA for DO (4500-F) DetailsBackDescription Copper Sulfate-Sulfamic Acid Inhibitor, 1 L. Features APHA for DO (4500-F)