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$$107.95 Vee Gee STX-3 0-100% Salinity Refractometer ATC Reef Sea Marine Water$

$107.95 Vee Gee STX-3 0-100% Salinity Refractometer ATC Reef Sea Marine Water

$ 107⁹⁵ Save $ 12

$$110 FREE S&H Vee Gee STX-3 Dual Scale Salinity Refractometer ATC Reef Sea Marine Water$

$110 FREE S&H Vee Gee STX-3 Dual Scale Salinity Refractometer ATC Reef Sea Marine Water

$ 110⁰⁰ Save $ 10

$$117 FREE S&H Vee Gee BTX-1 0-32% Brix Refractometer with ATC 43002 VeeGee$

$117 FREE S&H Vee Gee BTX-1 0-32% Brix Refractometer with ATC 43002 VeeGee

$ 117⁰⁰ Save $ 43

Milwaukee MC122

$119.95 MILWAUKEE INSTRUMENTS MC122pH Controller monitor pH and/or ORP & MA911B/2 Probe

$ 119⁹⁵ Save $ 6

$1.79nD Gem Refractometer Fluid$

$12.00 Chinese Made 1.79 GEM Gemstone Refractometer Refractive Index Fluid Liquid

$135.00 FREE S&H Hanna HI1291D, 4 in 1 Replacement Electrode

$135.00 FREE S&H Hanna HI1291D, 4 in 1 Replacement Electrode

$ 135⁰⁰ Save $ 10

$$139.99 GR-100 0-100% Glycerin in Water Refractometer Pipe Antifreeze Glycerine$

$139.99 GR-100 0-100% Glycerin in Water Refractometer Pipe Antifreeze Glycerine

$ 139⁹⁹ Save $ 390

$Glycerin Refractometer$

$139.99 GR-100, 0-100% Glycerin Water Refractometer Sprinkler Antifreeze NFPA 13

$ 139⁹⁹ Save $ 390

$Gem Refractive Index Fluid$

$14.65 12 Gram Gem Gemstone Refractometer Refractive Index Fluid Liquid 1.800

$$149.99 MISCO 7084VP Glycol PG & EG Refractometer, REFURBISHED$

$149.99 MISCO 7084VP Glycol PG & EG Refractometer, REFURBISHED

$ 149⁹⁹ Save $ 40

Reichert Duo-Chek DC60

$165 Reichert Rhino Duo-Chek DC60 Ethylene Propylene Glycol Celsius 137564LO

MA887

$165.00 MILWAUKEE INSTRUMENTS Digital Refractometer MA887 w/ Calibration Fluid for Seawater Measurements

$$169.99 ATC Lighted Glycol Antifreeze LED Refractometer Tester, Celsius$

$169.99 ATC Lighted Glycol Antifreeze LED Refractometer Tester, Celsius

PH600-AQ

$17.95 MILWAUKEE INSTRUMENTS pH600-AQ pH Tester with 1 point manual calibration

$ 17⁹⁵ Save $ 2

$$175.00 Hanna HI96822 Digital Salinity Refractometer HI 96822 FREE S&H$

$175.00 Hanna HI96822 Digital Salinity Refractometer HI 96822 FREE S&H

$Glycerin Refractometer$

$189.99 GRL-100, 0-100% Glycerin in Water; Antifreeze Glycerine w/ Lighted Daylight Plate

$ 189⁹⁹ Save $ 235

$$19 1.4860nD Refractive Index Calibration Fluid Refrigeration Oil Refractometer$

$19 1.4860nD Refractive Index Calibration Fluid Refrigeration Oil Refractometer

$ 19⁰⁰ Save $ 25

$$19.99 Atago Silicon Cover 4 PAL Refractometer PAL-1 PAL-2 PAL-10S PAL-22S$

$19.99 Atago Silicon Cover 4 PAL Refractometer PAL-1 PAL-2 PAL-10S PAL-22S

$$190.00 MISCO 7084VP PG & EG Glycol Antifreeze Refractometer Tester 'F$

$190.00 MISCO 7084VP PG & EG Glycol Antifreeze Refractometer Tester 'F

$$199.99 NISupply Refractive Index Refractometer, nD POE AB Mineral Oil w/ Internal Light$

$199.99 NISupply Refractive Index Refractometer, nD POE AB Mineral Oil w/ Internal Light

$ 199⁹⁹ Save $ 115

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