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Leak-resistant seal promotes consistent suction for improved debris pickup and cleaner performance
The LN4030 is designed to be used often—and comfortably
Precise OEM fit ensures reliable compatibility with Dolphin S50
total chlorine or bromine
Broad Compatibility with Pool Heads: Fits most brushes
Sta-Rite System 3 Modular Filters 170145 sold_recently Leak-resistant seal promotes consistent suctionPentair Sta Rite System 3 Modular Filter 170145 Cartridge Set Intro Designed for Sta Rite System 3 modular filters, the 170145 cartridge set delivers a complete OEM replacement that fits the S7M120 core. This ready to install kit includes 25021 0200S and 25022 0201S cartridges, engineered to maintain a tight seal, preserve steady flow, and deliver noticeably clearer pool water throughout the season. Built for residential pools, these cartridges
