This cartridge works in most whole-house and well water systems designed for 20" × 2

Compatible with handheld units requiring conductivity and total dissolved solids measurement capability

Turn off the main water supply and release pressure from the line before installation

This valve provides a clean tap point for reverse osmosis systems and filtration equipment without the need for soldering or complex plumbing modifications

Health Compliance

Good Water (PrecipSol4-32) #4 - 32 OZ Hardness2879 This cartridge works in mostGood Water Warehouse Good Water PrecipSol4 32 pH Test Kit Accurate pH measurement for dilute, unbuffered water samples where standard test kits fail 32 oz Bottle Model #4 Low Buffer Capacity WHY IT WORKS Engineered for dilute solutions with less than 0. 1% phosphate buffer Precision in Dilute Solutions Formulated specifically for water with low buffer capacity where standard pH tests give inconsistent results Fresh Water Versatility Works across tap