System III Small Inner Cartridge (P/N: 25021-0200S)
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This fits the Sta-Rite System 3 filter S7M120 model.
The innovative balanced flow design first introduced with the System 3 Mod Media is still the standard of the industry
Complete media coverage combined with shallow pleats means greater dirt holding capabilities, resulting in longer filter cycles and less cleaning.
The shallow pleat design allows you to simply hose off the elements in a matter of minutes making service a snap.
Sta-Rite's modular media concept incorporates the latest in media science.