💧 Dive into Clarity with Every Drop! Measuring 7-3/4" x 10-1/4" x 8-1/2", it fits perfectly in your lab or home. 16 ounces of solution means fewer refills and more testing! Seamlessly replaces solution A for hassle-free maintenance. Ensure accurate water quality assessments with our reliable OTO solution. Includes 1 bottle per pack for straightforward purchasing. 16-Ounce Volume Dimensions Test Reagents The Pentair R161056 No.2 OTO Solution is a 16-ounce bottle of essential test reagents designed for accurate water quality testing. It replaces solution A and features a compact design, making it a convenient addition to any testing setup.