Lifespan: 6-7 Years

MI412 has a built in timer that ensures appropriate reaction time is used for the chemical reaction

ready on demand

2 x 15-Stage Replacement Filter Cartridges

1× pH2O alkaline filter cartridge (150-gallon capacity)

Milwaukee MA916B/1 Lab Grade Glass pH Replacement Probe - Refillable, BNC Connector redox probe Lifespan: 6-7 YearsProfessional Lab Grade Glass pH Probe with Refillable Reference The Milwaukee MA916B 1 is a precision lab grade single junction glass pH probe designed for accurate, fast response pH measurement in laboratory, research, and quality control applications. Compatible with any Milwaukee BNC connector meter, this probe features a high impedance glass body and refillable reference system for superior accuracy and long term reliability. Key Features: Lab