The Gravity Water System uses a comprehensive long-contact filtration process that gives water more time to interact with filtration media

Eco-Friendly Choice — Replaces hundreds of single-use plastic bottles annually

Membrane Shape: Spherical glass

01 pH removing the inaccuracies involved with mixing buffers

Calibration: 1-point air calibration

Milwaukee PH55 PRO Waterproof pH & Temperature Tester with ATC & Replaceable Probe brewing pH meter The Gravity Water System usesDESCRIPTION The Milwaukee Waterproof pH55 PRO pH Temp. Tester is one of our most accurate cost effective, well rounded, rugged and reliable testers in the market featuring dual level LCD readouts, easily replaceable probe and extended pH ranges to meet almost any application. It's simple 1 or 2 point automatic calibration is simple to use and offers TWO sets of memorized buffers to select. Ideal for use in aquariums, hydroponics, horticulture,