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Aqua Craft Standard Seawater 35 ppt Refractometer Calibration Solution - 60 mlRefractometer calibration solution is used to accurately calibrate your refractometer for testing natural sea water or synthetic sea water. Specifically manufactured for calibrating refractometers for use in testing natural or synthetic sea water. Clean refractometer prism slide with clean fresh w...$9.89$9.89 -
Hayward ECX270861 Boxed Pressure Gauge Replacement for Select Hayward Sand and D.E. FilterThis boxed pressure gauge is designed to use with Micro-Clear vertical grid, Perflex extended-cycle D.E. filter and Sand filter models EC30, EC40, EC40AC, I_PFPPTS, S160T, S200, S240, S245T, S190T and also compatible with Hayward Pro Series sand filter models S210S, S244S, S310S, S140T, S144T, S180T...$15.12$15.12 -
Milwaukee MA887 Digital Salinity Refractometer with Automatic Temperature Compensation, Yellow LED, 0 to 50 PSU, -2 PSU Accuracy, 1 PSU ResolutionMilwaukee MA887 Digital Salinity Refractometer with Automatic Temperature Compensation, Yellow LED, 0 to 50 PSU, +/-2 PSU Accuracy, 1 PSU Resolution has a number of industrial applications. Samples are measured after a simple user calibration with distilled or deionized water. Within seconds, the re...$110.00$110.00
