Hydrometer & Thermometer
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Fluval Sea Hydrometer - Hydrometer
Fluval
MSRP: $21.84$12.18Fluval Sea Hydrometer provides accurate measurements of specific gravity and salinity in marine aquariums. This easy-to-read hydrometer has clear markings and is compact and easy to use and can be installed inside a tank permanently for continuous...XA14356MSRP: $21.84$12.18 -
Hikari Accuprobe Hydrometer - Hydrometer
Hikari
MSRP: $12.85$7.67Hikari Accuprobe Hydrometer provides certified calibration of a wide range specific gravity meter. This self-leveling, hanging device features an auto temperature correcting design and is easy to read.Specific gravity meterEasy to readSelf-leveling,...HK96010MSRP: $12.85$7.67 -
Instant Ocean Hydrometer
Instant Ocean
MSRP: $19.88$11.14Instant Ocean Hydrometer is accurate, reliable water test equipment is absolutely vital to creating and sustaining a healthy, successful marine environment.Accurate to 0-001Durable, Permanent Needle MountEasy-Read, 2-Color Scale with Safe ZoneExtra-Wide...AS02503MSRP: $19.88$11.14