COSLUS C20 Water Dental Flosser

The COSLUS C20 Water Dental Flosser is a black cordless-style flosser listing with a stated weight of 15.2 ounces, its operating settings and included accessories are not detailed here.

At a glance

The listing identifies the product as model C20 and describes it as a water dental flosser.
The listed dimensions and weight may help buyers judge whether the device fits their storage or travel needs.

Price

$35.98Save 16%

Reference price: ~~$42.99~~

Price checked: Nov 9, 2026

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Pros and cons

Pros

The listing states that one AA battery is included, so a buyer may not need to source that battery separately to get started.

Technical specifications

4 specifications

Identity
Brand	COSLUS
Model	C20

Dimensions and weight
Dimensions listed	9.05 x 3.54 x 2.36 inches; 15.2 ounces

Power
Battery requirement	1 AA batteries required. (included)

What to know before buying

The available details do not specify pressure settings, modes, reservoir capacity, or included accessories, customer feedback is mixed on power and pressure and includes durability concerns, so those points may matter when comparing options.

Who is it for?

A good fit for

Buyers looking for a water flosser and who value the portability reported by customers may want to consider it, while accounting for the missing control and accessory details.

Less suited to

Buyers who need clearly specified pressure controls, reservoir capacity, or bundle contents should look for a listing that documents those details.
Buyers for whom long-term durability is a priority may wish to weigh the durability concerns reported in customer feedback.

COSLUS C20 Water Dental Flosser · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.4 / 5 · 55,241 ratings

5 stars71%71%
4 stars14%14%
3 stars6%6%
2 stars3%3%
1 star6%6%

The supplied customer summary describes the flosser as easy to use and says customers appreciate its cleaning performance and portability. It also reports mixed experiences with power and water pressure, alongside concerns about durability, including reports of the device stopping within two months. These are customer perceptions, not a guarantee of an individual unit's performance. For travel-oriented use, portability may matter, buyers who depend on consistent pressure or are concerned about longevity should take the mixed feedback into account. The aggregate rating is 4.4 out of 5 from 55,241 global ratings, but that figure alone does not explain individual experiences.

Positive themes

The customer summary describes ease of use and cleaning performance positively.
Customers are reported to appreciate its portability for travel.

Negative themes

Durability is a concern in the customer summary, which mentions reports of the flosser stopping within two months.

Mixed feedback

Customer feedback is mixed on power and water pressure: some describe adequate power and strong pressure, while others report weak power or pressure that is too strong.

Frequently asked questions

What battery does the COSLUS C20 require?

The listing says it requires one AA battery and that the battery is included.

What are the listed dimensions and weight?

The listing gives 9.05 x 3.54 x 2.36 inches and 15.2 ounces.

What do customers report about its performance?

The customer summary describes cleaning and ease of use positively, but reports are mixed about power and water pressure. It also notes durability concerns.