$7.49
In stock. Available at: Petsmart
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Designed so you can take samples at a depth of six inches, without having to submerge your hands in water. Accurate to +/- 0.001 specific gravity. The Deep Six Hydrometer takes true water samples 6 inches below the surface, which give a more accurate reading of salinity than surface samples. Gives accurate, temperature-corrected readings in warm water aquariums. Results shown in both ppt and specific gravity. Designed for years of accurate, reliable use.

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