iRobot s9+ (9550)

Quick answer

iRobot s9+ (9550) has confirmed compatibility with Multi-Surface Rubber Brush Set (s9 series) and High-Efficiency Filter (s9 series).

Series: Roomba s9 — browse the Roomba s9 series

Compatibility varies by part. Being in the same series does not mean every part is shared — check each part below individually.

Multi-Surface Rubber Brush Set (s9 series)Compatible

Multiple retailers agree

Amazon eBay Walmart

Evidence (2) — verified 2026-09-14

9 Pack Roomba s9 Replacement Parts Compatible for iRobot Roomba s9+ (9550) S9 (9150) — Lists rubber brush set for s9+.
Theresa Hay Replacement Parts Fit for iRobot Roomba s9 (9150) s9+ (9550) — Independent listing confirming the same rubber brush grouping.

High-Efficiency Filter (s9 series)Compatible

Multiple retailers agree

Amazon eBay Walmart

Evidence (2) — verified 2026-09-14

For Roomba Replacement Parts S9 S9+ Vacuum Cleaner - 8 Filters & 8 Side Brushes — Lists filters for s9+ (9550).
LAIMAI Replacement Parts for iRobot Roomba s9+ (9550) S9 (9150) — Independent listing confirming the same filter grouping.

Roomba Cleaning Head for Roomba 500, 600 & 700 seriesUnknown

Downgraded per full not_compatible dataset audit: Reversing the prior round's keep for consistency: live re-fetch of the cited page found only "Roomba Cleaning Head for Roomba 500, 600 & 700 series" as its title/scope -- a positive three-series statement, never mentioning the s9 line at all. No "only" wording or explicit s9 exclusion was found on the actual page; the record's own "not s9" phrasing was our characterization of the page's silence, not a quote from it. May still be incompatible in practice -- just not confirmed from this source.

Official part no.: 21917

Evidence (0) — verified 2026-09-14

Related models

Other models in the same series — each has its own, independently-verified compatibility.

s9 (9150)

Last verified: 2026-09-14