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$105.99 Vee Gee STX-3 Salinity Refractometer ATC ppt SG Reef Sea Marine Water
$108 Hanna HI98128 pHep 5 pH resolution: 0.01 pH, HI 98128
$119.95 MILWAUKEE INSTRUMENTS MC122pH Controller monitor pH and/or ORP & MA911B/2 Probe
$119.99 Vee Gee STX-3 0-100% Salinity Refractometer ATC Reef Sea Marine Water
$12.00 Chinese Made 1.79 GEM Gemstone Refractometer Refractive Index Fluid Liquid
$127 Vee Gee BTX-1 0-32% Brix Refractometer with ATC 43002 VeeGee
$129.00 MILWAUKEE INSTRUMENTS MA887 Digital Seawater Refractometer, MA887-BOX
$129.99 Westover Ethylene & Propylene Glycol Antifreeze Battery Refractometer
$139.99 LIGHTED ATC Clinical HYDRATION Refractometer for Veterinarians LED
$159.99 GR-100, 0-100% Glycerin Water Refractometer Sprinkler Antifreeze NFPA 13
$16.48 pH Meter Calibration Buffer Solution 10.00pH - 500ml Bottle - pH 10.00
$160 0-80% HD Brix Refractometer Maple Syrup Jam Sorbet Italian Ice Sauces Candy
$169.99 ATC Lighted Glycol Antifreeze LED Refractometer Tester, Celsius
$169.99 ATC Lighted Glycol Antifreeze LED Refractometer Tester, Fahrenheit
$169.99 LED ATC 58-90% Brix Refractometer, Honey Moisture, Specific Gravity Bees
$17.95 MILWAUKEE INSTRUMENTS pH600-AQ pH Tester with 1 point manual calibration
$170.00 Hanna HI 98129 pH EC TDS Conductivity Tester Meter, HI98129
$179.99 GRL-100, 0-100% Glycerin in Water; Antifreeze Glycerine w/ Lighted Daylight Plate
$18 Hanna HI7061L pH Meter General Purpose Cleaning Solution 500ml Bottle
$189.99 Hanna HI 98111 Piccolo pH Meter Tester HI98111 +/-0.01