The Pentair Commercial Flow Indicator (R172276) is the OEM replacement flow indicator for the Pentair Corrosion Resistant Flow Indicator Assembly, and is also compatible with select 320 Series in-line chlorine and bromine feeders. What It Does The flow indicator provides a visible confirmation that water is actively moving through the chemical feeder or flow indicator assembly. When the indicator shows no flow, chemical feed is interrupted — preventing dry-dosing conditions that can damage feeder components or allow untreated water to pass through the system. Replacing a failed or clouded indicator restores accurate, at-a-glance flow verification without replacing the entire assembly. Specifications Pentair Part Number R172276 Part Name Commercial Flow Indicator Quantity Included Each Fits Into Brand Equipment Line Model / Part Number Notes Pentair Corrosion Resistant Flow Indicator — Extensions / Dispensers / Flow Indicators R172627 Commercial flow indicator for corrosion resistant flow indicator assembly Pentair 320 In-Line Feeder — 320 Series R1710961 For use with 320, 322, 300-29X or feeders with 1/2 in. feed lines. Verify fitment before ordering. Compatibility is based on Pentair parts documentation and available OEM records. This is not an exhaustive list. For certainty, verify the part number in your equipment's manual or on the original part itself before ordering. Pro Tip Before ordering, locate the part number molded or printed on your existing flow indicator and confirm it matches R172276. The 320 Series compatibility listed above applies specifically to feeders with 1/2 in. feed lines — if your feeder uses a different feed line diameter, verify against your equipment manual before purchasing.
