Maytronics Dolphin 4-3/8" Cartridge w/ Bottom Lid (9991412-ASSY) alliedinnovation When multiple replacements are needed

When multiple replacements are needed for scheduled service or stocked maintenance

The Hayward PVC 3-port diverter valve is designed for compatible plumbing applications where water needs to be directed between multiple lines

or no longer holding the sensor correctly

For compatible spa skimmer service and restoration work

Maytronics Dolphin 4-3/8" Cartridge w/ Bottom Lid (9991412-ASSY) alliedinnovation When multiple replacements are neededA cartridge assembly helps capture debris inside a compatible robotic cleaner, and this Maytronics Dolphin version includes a bottom lid with a 4 3 8 inch format using the 9991412 ASSY reference. Cartridge style filter components are important because they influence how effectively the cleaner can trap debris and maintain water flow through the unit. This assembly has practical value because it combines the cartridge with the bottom lid, giving the