Type 523 Metering Ball Valve Handle/Guide - Pressure Washing w/ Mixing Guide

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Replacement handle and mixing guide for the Type 523 Metering Ball Valves from GFS. These valves are used in the pressure washing industry for accurately diluting bleach (sodium hypochlorite) and water before application. The guides are switched from the original 0-180* layout to one that's easier to read, but keyed just like the originals. One version has Close/20/40/60/80/Open markings to represent percentages, or simplified even further to a 0-5 system on the other. This system allows a 0% mixture (pure water) to 100% (pure bleach) in 10% increments (see guide). The handle is keyed like the original, but smaller and not as easy to accidentally pull off. Also included are options that are labeled "water" and "chem" for even easier identification. This system is fool proof for employees, saving time and chemical on the job site.