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Nitrate Checker

$345 HI96786 Nitrate Checker Photometer, Hanna Instruments

$ 34500
Sea Side Aquatics Refractometer

$39.99 Sea Side Aquatics Refractometer Measures Salinity Saltwater Aquarium

$ 3999
Salinity Refractometer

$44.99 Ocean Salinity Refractometer for Aquarium Sea Reef Water Heavy Duty, Dual Scale

$ 4499
Red Sea Refractometer

$49.99 Red Sea Seawater Salinity Refractometer

$ 4999 Save $ 15
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HI775-26

(2) Hanna HI 775-26 Checker Fresh Water Alkalinity Reagent - (50) Tests

$ 5650
ATAGO Master-S/Mill M 0.0-100.0PPT, Salinity 1.000-1.070 SG

ATAGO Master-S/Mill M 0.0-100.0PPT, Salinity 1.000-1.070 SG

$ 14999 Save $ 240
BEST DEAL! Salinity Salt Refractometer 4 Aquarium, Hydrometer SOFTCASE -

BEST DEAL! Salinity Salt Refractometer 4 Aquarium, Hydrometer SOFTCASE -

$ 2260
STX-3 Refractometer

BOSS S-10ATC Professional Salinity Refractometer Aquarium Sea Water Dual Scale

$ 7499 Save $ 67
Hanna HI713

Combo Pack! Hanna HI 713 Phosphate Photometer HI713 + 50 Reagents (HI713-25) Extra

$ 8150
Combo Pack! Hanna HI 713 Phosphate Photometer HI713 - 100 Extra Reagents (HI713-25)

Combo Pack! Hanna HI 713 Phosphate Photometer HI713 - 100 Extra Reagents (HI713-25)

$ 7825
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HI700

Hanna HI 700 Checker HC Ammonia Photometer HI700 FRESH WATER

$ 4700
Hanna HI 700-25 Checker HC Ammonia Photometer Reagents HI700 FRESH WATER

Hanna HI 700-25 Checker HC Ammonia Photometer Reagents HI700 FRESH WATER

$ 1799
HI701

Hanna HI 701 Checker Free Chlorine Photometer HI701

$ 4900
Hanna HI 701-25 Checker Free Chlorine Reagents HI701

Hanna HI 701-25 Checker Free Chlorine Reagents HI701

$ 1149
Hanna HI713

Hanna HI 713 Phosphate Photometer + Extra HI713-25 (25) Tests

$ 7050
Hanna HI713

Hanna HI 713 Phosphate Photometer, 75 Extra Reagents (HI713-25)

$ 9250
Hanna HI 713-25 Checker Phosphate Reagent - (50) Tests, HI713 AUTHORIZED DEALER

Hanna HI 713-25 Checker Phosphate Reagent - (50) Tests, HI713 AUTHORIZED DEALER

$ 1775
Hanna HI 718-25 Checker Iodine Reagent (25) Tests HI718

Hanna HI 718-25 Checker Iodine Reagent (25) Tests HI718

$ 1149
Hanna HI 721 Checker HC Iron Photometer + (25) HI721-25 Reagents, Combo Pack!

Hanna HI 721 Checker HC Iron Photometer + (25) HI721-25 Reagents, Combo Pack!

$ 6000
Hanna HI 721 Checker HC Iron Photometer HI721 + (50) HI721-25 Reagents, Combo Pack!

Hanna HI 721 Checker HC Iron Photometer HI721 + (50) HI721-25 Reagents, Combo Pack!

$ 9550