- 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.
Brand / ManufacturerFounded in 1971 Swimline has grown to be the largest manufacturer of above ground swimming pool liners in the world. In addition Swimline Corp. is the largest importer of inground and above ground swimming pool covers and related accessories. In 1990 Swimline founded International Leisure Products (also known as HydroTools, increasing their close relationship with the swimming pool industry by supplying pool toys, games and accessories.
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