Pentair BioShield Ballast (Previous Generation) | BioShield UV System 50W, 80W & 120W | 523032 FG2413 A thermal regulator that fails

A thermal regulator that fails prematurely is often the result of chronically low flow — replacing the part without addressing the root cause will result in repeat failure

Sta-Rite (A Pentair Brand) DJ/JS/JT Series 37400-0027S Sta-Rite (A Pentair Brand) Dyna-Glas®

It is not compatible with Hayward 60 sq

Always confirm the part number on your original valve before ordering — Pentair inline feeders have used multiple check valve configurations across model generations

and Dynamo pump families

Pentair BioShield Ballast (Previous Generation) | BioShield UV System 50W, 80W & 120W | 523032 FG2413 A thermal regulator that failsThe Pentair BioShield Ballast (523032) is the OEM replacement previous generation ballast for the Pentair BioShield UV disinfection system, covering the 50W, 80W, and 120W models. IMPORTANT: PREVIOUS GENERATION BALLAST ONLY Part 523032 fits previous generation BioShield UV systems only. If your system is a current generation unit, this ballast will not be the correct replacement. Verify the generation of your BioShield system against the part number