GroLine 1413 µS/cm Conductivity Standard with Certificate (230mL Bottle) Santevia Alkaline Gravity Water System Ceramic Pre-filter When the filter reaches end-of-life

When the filter reaches end-of-life

Warranty Note: Use of genuine NuvoH2O replacement cartridges is required to maintain system warranty coverage

Many more chemical contaminants

compact water filtration kit built for military

70 hours of continuous use

GroLine 1413 µS/cm Conductivity Standard with Certificate (230mL Bottle) Santevia Alkaline Gravity Water System Ceramic Pre-filter When the filter reaches end-of-lifeHI7031 023 is a GroLine 1,413 S cm conductivity standard that is prepared against a NIST traceable potassium chloride solution and supplied with a certificate of analysis. Hanna conductivity solutions have the lot number and expiration date clearly marked on the label and are air tight with a tamper proof seal to ensure the quality of the solution. Hanna's line of conductivity standards have been specially formulated to have an expiration of 5 years