Rainbow Reagent OTO #1 - 16 Oz Bottle - R161056 horsepower_20 HP Made only in thicker grades

Made only in thicker grades of stainless steel to withstand heavier usage

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Rainbow Reagent OTO #1 - 16 Oz Bottle - R161056 horsepower_20 HP Made only in thicker gradesThis is a 16 ounce bottle of Rainbow Solution OTO #1 which is a replacement used for Chlorine testing in Rainbow Kits 78HR (All in One), 78DPD, 752 (2 in 1) and 756. The 16 ounce bottle is a larger size than what is included in the kits. Larger size bottles are economical and convenient if you are using a lot of reagent.