Which filter cartridge does the Jacuzzi J-245 take?

Jacuzzi J-245 hot tub filter cartridge: 373045

Pleated cartridges clog with use. Replace one that stays dirty after a rinse.

1Filter cartridge373045

Part numbers come from hottubs.parts (source), checked November 6, 2026. Amazon buttons open a search for the part number; we may earn a commission.

On the label of the control box in the equipment bay, or in the owner's manual.