Waterpik STW vs SR-3000 Brush Heads

Waterpik STW-03 heads and legacy SR-3000 Sensonic heads are different; match the printed model and part number.

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Exact pair comparison

Exact pair records; an absent pair is Unknown
Handle	Head	Catalog result
Waterpik Sensonic STW-03W020	Waterpik Sensonic Contour	Confirmed fit
Waterpik Sensonic STW-03W020	Waterpik Sensonic Standard	Confirmed not fit
Waterpik Sensonic Professional Plus SR-3000	Waterpik Sensonic Contour	Unknown
Waterpik Sensonic Professional Plus SR-3000	Waterpik Sensonic Standard	Confirmed fit

Why this matters

Marketing names often cover multiple generations. The connector, model code and manufacturer fit list are the reliable purchase checks. A head that looks similar may fail to attach, and smart features need their own support check.

What to do next

Read the code printed on the handle.
Search that code in the model finder.
Open the exact head family and compare the retail pack part number.

Search your exact handle →

Search the recorded replacement on Amazon

These are search-result links, not verified Amazon product listings. Price, stock and seller authenticity are not checked.

Waterpik Sensonic Contour

This head family has a documented fit in the BrushMatch catalog. Amazon search results may contain other products; confirm the exact head and your handle before ordering.

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Search this head on Amazon

Waterpik Sensonic Standard

This head family has a documented fit in the BrushMatch catalog. Amazon search results may contain other products; confirm the exact head and your handle before ordering.

(paid link)

Search this head on Amazon

Sources and scope

Sensonic Contour · manufacturer; web full text; retrieved 2026-10-30
Sensonic Standard · manufacturer; web full text; retrieved 2026-10-30