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Why choose Regal Pool Products—backed by decades of pool chemistry expertise
Ideal for homeowners and maintenance pros handling in-ground pools
Prolongs cell life by preventing scale-induced wear and corrosion
Brand reliability and pool-care expertise: Trust in ProTeam’s long-standing reputation for consistent results and practical formulations
quieter suction
Maytronics M3/ DX3/ DX4 Filter Cartridge Pack of 4, 9991407-R4 Viton Service Why choose Regal Pool Products—backedMaytronics 9991407 R4 Filter Cartridge For Dolphin Endeavor, Supreme M3, Orion, DX3, DX4, Saturn, Neptune, Neptune Plus Robotic Pool Cleaners, 4 Pack The Fine Filter Cartridge Kit (Part 9991407 R4) is an OEM replacement set of four fine mesh filter panels designed for compatible Dolphin Maytronics robotic pool cleaners. It allows for a full refresh of the filter system, capturing smaller debris and helping maintain optimal flow and cleaning