Maintains optimal water flow and extends filter lifespan – no modifications needed! 【36-Piece Complete Kit】All-in-One Solution for 6+ Months! Everything included: 6 upgraded 3-in-1 carbon pads, 6 polishing pads, 6 fine polishing pads, 6 bio-foam blocks, 6 bio-foam pads, 6 bags ceramic rings.
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