Pentair 25021-0200S Inner Cartridge – 100 sq ft
Part Number: 25021-0200S
Description
A high-quality replacement inner cartridge offering approximately 100 square feet of filtration area, designed for use in the System 3 modular media filter family.
Compatibility & Fitment
- Fits the Pentair/Sta-Rite System 3 S7M120 filter model.
- Intended for use when the original cartridge shows signs of wear, reduced flow, elevated pressure, or visible media damage.
- Direct replacement for cartridges that require the 25021-0200S geometry.
Features & Specifications
- Filtration area: approx. 100 sq ft.
- Outer diameter: about 8 ⅝″ (≈ 8.5″) according to specifications.
- Length: about 25 ¼″.
- Top cap: closed style; bottom cap: open style.
- Media construction: pleated polyester (OEM spec) for improved dirt-holding and ease of cleaning.
Installation Notes
Turn off the pump and relieve system pressure. Open the filter tank and remove the old cartridge. Clean the interior of the tank and inspect gaskets or seals. Install the new 25021-0200S cartridge, ensuring correct orientation and seating. Reassemble the filter, restore flow, and monitor system pressure to confirm proper operation.
Maintenance Tip
Rinse the cartridge regularly during its service life. If cleaning no longer restores acceptable flow-rate or pressure drop, or the media pleats show wear or damage, replace the cartridge to maintain optimal system performance.
