Pentair 523506Z ChemCheck Clear Flow Jar Reservoir

The Pentair 523506Z is the clear reservoir, or flow jar, on a ChemCheck water testing system. OEM reservoir for Pentair ChemCheck EC-523476 and 523476 systems Clear body lets you see sample water and electrode condition at a glance Seats between the flow valves and the electrode housing Why buy from Shasta? Shasta Pool Supply stocks genuine Pentair ChemCheck parts for Phoenix-area pool owners and service pros. Orders over $150 ship free. The reservoir is item 9 on Pentair's ChemCheck parts diagram, between the drain plug assembly and the o-ring.