Roborock S8 Pro Ultra
Quick answer
Roborock S8 Pro Ultra has confirmed compatibility with Dual Rubber Main Brush, Washable Filter, and 5-Arm Side Brush (standard). Compatibility with FlexiArm Design Side Brush is NOT confirmed — Roborock's own support article explicitly excludes S8 Pro Ultra from the FlexiArm Design side brush — only Max Ultra and MaxV Ultra have it.
Compatibility varies by part. Being in the same series does not mean every part is shared — check each part below individually.
Dual Rubber Main BrushCompatible
Evidence (2) — verified 2026-09-14
- Replacement Parts Accessories Kit Compatible with Roborock S8 S8+ S8 Pro Ultra — Groups S8/S8+/S8 Pro Ultra as sharing main brush.
- Accessories Kit Replacement for Roborock S8 Pro Ultra / S8+ / S8 — Independent listing confirming the same grouping.
Washable FilterCompatible
Evidence (2) — verified 2026-09-14
- Replacement Parts Accessories Kit Compatible with Roborock S8 S8+ S8 Pro Ultra — Groups S8/S8+/S8 Pro Ultra as sharing filter.
- Accessories Kit Replacement for Roborock S8 Pro Ultra / S8+ / S8 — Independent listing confirming the same grouping.
5-Arm Side Brush (standard)Compatible
Evidence (2) — verified 2026-09-14
- Replacement Parts Accessories Kit Compatible with Roborock S8 S8+ S8 Pro Ultra — Groups S8/S8+/S8 Pro Ultra as sharing this standard side brush.
- Accessories Kit Replacement for Roborock S8 Pro Ultra / S8+ / S8 — Independent listing confirming the same grouping.
Sonic Mop Pad (standard)Compatible
Evidence (2) — verified 2026-09-14
- Replacement Parts Accessories Kit Compatible with Roborock S8 S8+ S8 Pro Ultra — Groups S8/S8+/S8 Pro Ultra as sharing mop cloth pads.
- Accessories Kit Replacement for Roborock S8 Pro Ultra / S8+ / S8 — Independent listing confirming the same grouping.
FlexiArm Design Side BrushNot compatible
Evidence (1) — verified 2026-09-14
- Roborock Support: difference among S8 Pro Ultra, S8 Max Ultra, S8 MaxV Ultra — "Only S8 MaxV Ultra and S8 Max Ultra are equipped with the FlexiArm Design Side Brush."
Edgewise Mop Cloth (hot-water-wash)Not compatible
Evidence (1) — verified 2026-09-14
- Roborock Support: difference among S8 Pro Ultra, S8 Max Ultra, S8 MaxV Ultra — "Only S8 MaxV Ultra and S8 Max Ultra are equipped with ... Hot Water Mop Washing, Edgewise Mop Cloth."