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These superior
Pentair/Rainbow R18608
With its straightforward operation and robust
Economically priced
Rainbow Reagent OTO #1 - 16 Oz Bottle - R161056 state_District of Columbia These superiorThis 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.
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