Pentair 25021-0202S Cartridge
Part Number: 25021-0202S
Description
Replacement small inner cartridge for the System 3 S8M150 modular media filter. Provides approximately 191 square feet of filtration area and restores proper filter performance.
Compatibility & Fitment
- Fits System 3 S8M150 filters using the small inner cartridge specification.
- Intended for use when original cartridge shows reduced flow, high pressure, torn media, or excessive wear.
Features & Specifications
- Filtration area: approx. 191 square feet.
- Dimensions: approx. 12-5/8″ outer diameter × 29-3/8″ length.
- Designed to trap debris and fine particles to maintain clear pool water.
Installation Notes
Turn off pump and relieve system pressure. Open filter tank, remove old cartridge, inspect tank interior and gaskets, insert new cartridge ensuring correct seating, reassemble tank, restart the system and monitor pressure to confirm correct operation.
Maintenance Tip
Clean the cartridge annually or when pressure rises beyond recommended operating levels and flow falls. Replace the cartridge when hosing and soaking no longer restore acceptable flow and clarity.
