Aquarium Systems Instant Ocean Hydrometer Specific Gravity Meter
$10.01
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Aquarium Systems Instant Ocean Hydrometer Specific Gravity Meter Accurate to +/- 0.001 specific Easy read two color scale with safe zone Ideal for use in warm water aquariums 68 F - 85 F Read specific gravity on inside scale and salinity in parts per thousand (ppt) on outside scale
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$9.81
(+$0.30)
$9.91
(+$0.10)
$10.01
(+$0.10)