VacPartFit

iRobot Roomba · Combo j9+

Roomba Combo j9+

Confirmed

Combo j-series mop pad

Official Combo j-series washable pad lists Combo j9+.

Official source

Confirmed

Combo j / 10 Max High-Efficiency filter

iRobot parts catalog lists a High-Efficiency pack for Combo j7 / j7+ / j9+ / 10 Max.

Official source

Does not fit

Combo j battery pack

Official McKinley listing excludes Combo j9+.

Official source

Does not fit

McKinley e/i/j battery

Official: not compatible with Combo j9+.

Official source

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