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OTO 250ml (Orthotolidine Test Solution) is a reliable liquid reagent used for measuring free chlorine levels in swimming pools and water treatment systems. Simply add a few drops to a water sample to get a quick and accurate color change indication of chlorine concentration. This 250ml bottle size is perfect for regular pool maintenance and water quality monitoring.

Key Features:

  • Accurate free chlorine testing with OTO reagent

  • Easy-to-use liquid form, 250ml bottle

  • Suitable for swimming pools, spas, and water treatment plants

  • Helps maintain safe and balanced chlorine levels

  • Compact and convenient for routine testing

OTO 250mm

Quantity
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