HydroTools Test Kit Refills OTO/Phenol Red 8450
Item In Stock
- Test kit refills for standard test kits.
- Oto (yellow) solution for chlorine testing.
- Phenol red solution for pH testing.
HydroTools Chlorine test kit refills for standard testing. Oto (Yellow) solution for chlorine testing and Phenol (Red) solution for pH testing.
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