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protecting the pump's internal components from damage and maintaining consistent flow
Note from Pleatco: This cartridge features open ends with 12 concentric slots — verify your existing cartridge matches this cap configuration before ordering
Mounted beneath the venturi assembly
This cartridge contains no internal center core
Pentair DSI Ignition Control | MiniMax 75 & 100 | 471091 ART1004S protecting the pump's internal componentsThe Pentair 471091 is the OEM Direct Spark Ignition (DSI) control board for Pentair MiniMax 75 and MiniMax 100 pool and spa heaters. IMPORTANT: LICENSED PROFESSIONAL INSTALLATION REQUIRED Gas and electrical heater components must be serviced by a licensed pool professional or qualified HVAC technician. Do not attempt to service gas or high voltage components without proper certification. The DSI control module manages the direct spark ignition
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