Pentair Spa/Pool Filter Cartridge Inner/Outer Pack (170147)

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The Pentair 170147 filter cartridge inner and outer pack is designed for compatible spa and pool filter applications where a matched cartridge set is needed. A paired cartridge arr angement like this is useful because it refreshes both the inner and outer filtering elements together, helping restore the filter assembly more completely than replacing only one piece.This style of replacement is often chosen when the existing cartridges are worn, clogged, frayed, or no longer cleaning effectively after extended service. Installing a correct-fit Pentair cartridge pack can help restore water flow, improve debris capture, and support a cleaner overall filtration result.For compatible Pentair spa and pool systems, this inner and outer pack is a practical replacement choice when the goal is a more complete cartridge refresh and dependable ongoing filtration performance. OEM Pentair inner and outer filter cartridge pack Designed for compatible spa and pool filter applications Helps replace both cartridge elements together Useful when existing cartridges are worn or heavily soiled Supports cleaner and more dependable filtration performance Show more