iRobot Roomba Combo R1138 – Plus.Parts® Replacement Filter Set

The iRobot Roomba Combo R1138 is a retail variant of the iRobot Roomba Combo combined vacuum-and-mop robot, sharing the same platform as the R1118 and base Roomba Combo models in the series. The R1138 uses iRobot’s systematic navigation to plan its cleaning path through rooms, running the suction system and drawing air through a high-efficiency filter in the exhaust path during each session. The filter captures fine dust and airborne particulate before the exhaust air is returned to the room. Regular filter replacement on the R1138 keeps the airflow path clear and sustains suction performance at the designed output level; an overdue or saturated filter restricts airflow, reducing effective suction during combined vacuum and mop cleaning runs.

This set of three Plus.Parts® high-efficiency replacement filters is a direct-fit option for the iRobot Roomba Combo R1138. Each filter matches the original filter’s dimensions and housing geometry, fitting the R1138’s filter slot without modification. Three per set covers three complete filter replacement intervals from a single order, providing a practical stock for ongoing maintenance on the Roomba Combo R1138 without frequent repeat purchases.

High-efficiency filter media matched to the Roomba Combo R1138’s filtration specification. Our team covers the full iRobot Roomba Combo range and is available for any compatibility or order question.

Three-filter service pack

• R1138 Direct-Fit – Each filter is dimensioned to match the iRobot Roomba Combo R1138’s original filter housing for installation in the filter slot without adjustment.
• Series-Compatible Format – Built for the R1138 retail variant, using the same filter format as the R1118 and base Roomba Combo models in the series.
• Three Intervals from One Order – Three filters per set covers three consecutive replacement cycles in a single purchase, reducing repeat orders for a regularly used Roomba Combo R1138.