Myron L (442-300) 442 Natural Water Standard Calibration Solution 300 PPM Mixed Bed DI Compatible with most commercial NF

Compatible with most commercial NF system configurations rated for 70 psi operating pressure and 680-700 GPD capacity

Dual O-ring protection and integral temperature compensation for continuous in-line water quality monitoring

💧 The C-600P series earns its reputation in the field

Calibrate using fresh Zobell's solution (220 mV at 25°C) or alternative ORP standard per meter instructions

RO pre-filtration stages

Myron L (442-300) 442 Natural Water Standard Calibration Solution 300 PPM Mixed Bed DI Compatible with most commercial NFMyron L Myron L 442 Natural Water Standard Calibration Solution 300 PPM Industry standard calibration solution for natural water TDS testing across municipal, industrial, and environmental applications Model 442 300 300 PPM Natural Water Standard 442 Salt Formula The Myron L 442 300 calibration solution has been the world's most accepted natural water standard for over 35 years, formulated specifically to match the variable salt composition found in