BURST Oral Care
BURST Water Flosser
$69.99
Best Water Flossers · head-to-head
BURST Water Flosser vs Coslus C20 Water Flosser (F5020E)
A sourced, side-by-side comparison. Coslus C20 Water Flosser (F5020E) is cheaper at $42.99. Every spec and price links to its source.
Coslus
Coslus C20 Water Flosser (F5020E)
$42.99Cheaper
Released 2022
Which is better: the BURST Water Flosser or Coslus C20 Water Flosser (F5020E)?
On the specs we track, they're closely matched. The Coslus C20 Water Flosser (F5020E) is the cheaper at $42.99.
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Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | BURST Water Flosser | Coslus C20 Water Flosser (F5020E) |
|---|---|---|
| US price | $69.99 MSRP from burstoralcare.com | $42.99 |
| Brand | BURST Oral Care | Coslus |
| Released | — | 2022 |
| Type | cordless | cordless |
| Tank capacity (ml) | 110 | 300 |
| Pressure settings | 3 | 3 |
| Max pressure (psi) | 160 | 120 |
| Tips included | 1 | 5 |
| Power | rechargeable | rechargeable |
| Runtime min | 0.5 | 1 |
| Release | — | 2022 |
Sources — BURST Water Flosser: burstoralcare.com (verified 2026-06-19). Coslus C20 Water Flosser (F5020E): coslus.com (verified 2026-06-19).
What's the difference between the BURST Water Flosser and Coslus C20 Water Flosser (F5020E)?
Where the two actually differ on the specs we track (4 of 7). Matching specs are omitted.
- Tank capacity (ml): BURST Water Flosser 110 vs Coslus C20 Water Flosser (F5020E) 300
- Max pressure (psi): BURST Water Flosser 160 vs Coslus C20 Water Flosser (F5020E) 120
- Tips included: BURST Water Flosser 1 vs Coslus C20 Water Flosser (F5020E) 5
- Runtime min: BURST Water Flosser 0.5 vs Coslus C20 Water Flosser (F5020E) 1
What reviewers say
Sourced tester consensus for each — the "what people who used it think" layer, not just specs.
BURST Water Flosser
Good Housekeeping is the only whitelisted outlet to hands-on test the exact BURST Water Flosser. It was among the dozen flossers evaluated by its Beauty Lab and 119-person consumer panel, but it landed in the 'other models we tested' group that did not make the final cut. Testers praised its affordability and flexible tips that rotate a full 360º (useful for the back of the mouth and for braces), but faulted the small 110 mL tank's frequent refills and messy use. (1 sourced review, 1 lab-tested.)
Praised: Flexible tips rotate a full 360º, reaching the back of the mouth and helping those with braces; Affordable price.
Flagged: Small 110 mL tank requires frequent refills; Messy to use.
Coslus C20 Water Flosser (F5020E)
No sourced tester review yet.