Which multi-styler attachments fit which model
Last checked 2026-10-02.
Per Shark's accessory pages, the FlexStyle Curl-Defining Diffuser and Styling Concentrator are listed for the HD440, and the HD440BK bundle already has both in the box. Dyson says the Airwrap Co-anda2x accepts only Co-anda2x attachments. Brand, colour or a similar shape does not establish that an attachment fits: a FlexStyle model missing from Shark's list for an attachment is unknown, not assumed to fit.
As an Amazon Associate BeautyEvidence earns from qualifying purchases.
| Attachment | Shark part | HD440BK | Airwrap Co-anda2x | Source |
|---|---|---|---|---|
| Shark FlexStyle Curl-Defining Diffuser | XSKHD4DA | fits (Shark lists it), already in the box | no: Dyson says only Co-anda2x attachments fit the Co-anda2x | Shark Curl-Defining Diffuser page |
| Shark FlexStyle Styling Concentrator | XSKHD4SCA | fits (Shark lists it), already in the box | no: Dyson says only Co-anda2x attachments fit the Co-anda2x | Shark Styling Concentrator page |
Shark lists these models for each attachment: Shark FlexStyle Curl-Defining Diffuser: HD400, HD435, HD440, HD430REF, HD435REF, HD432PK; Shark FlexStyle Styling Concentrator: HD400, HD410, HD420, HD430, HD430C, HD435, HD440, HD430REF, HD435REF, HD432PK. Attachments are shown by Shark part and are not linked here.
What each bundle includes
- Dyson Airwrap Co-anda2x Straight+Wavy (Amazon →): Fast dryer 2x, AirSmooth2x attachment, 1.6-inch Co-anda2x curling barrel, 1.2-inch Co-anda2x curling barrel, Round volumising brush 2x, Anti-snag loop brush 2x, presentation case (Dyson Airwrap Co-anda2x Straight+Wavy page (2025 edition))
- Shark FlexStyle HD440BK (Amazon →): FlexStyle air styling and drying system, 2 x 1.25-inch Auto-Wrap Curlers, Oval Brush, Paddle Brush, Curl-Defining Diffuser, Styling Concentrator (Shark FlexStyle HD440BK page)
Kinds of claim on this page: box contents, compatibility and voltage are manufacturer claims where they come from Dyson's or Shark's own page, and listing claims where they come from the Amazon listing; each row names its source (read 2026-10-02); each linked offer is the listing's selected new offer, sold by Amazon.com, on 2026-10-02. No prices are shown: check the retailer for the current price. What no source states is unknown. There is no product evidence about drying time, heat or styling results here: nothing was measured or tested.
Head to head: Dyson Airwrap Co-anda2x vs Shark FlexStyle. What each bundle has and what you might add: the bundles.