Why it's a great deal
COSLUS 300ml Cordless Portable Rechargeable Water Dental Flosser
4.4
(48,776 reviews)
$7.00
$42.99
FREE shipping with Prime · FREE delivery on $35+ orders
At $7.00 it's 80% below its 12-month average — and $21.48 below the prior 12-month low of $28.48. The lowest we've seen.
Verified by Thrifle price tracking
Price intelligence
Is this a good price?
Tracked since Jun 15, 2025 · updated daily
Current price
$7.00
−80% vs 1YRAvg $37.58 (90D) · -81% vs 90D avg
This deal
$7.00
Typical price
$35.52
All-time low
$28.48
vs 12-mo average
−80%
this deal$35.10
typical$13.18
any-seller low · Amazon $29.9973/100
Drop Tendency
Product info
About this deal
Amazon has the COSLUS 300ml Cordless Water Dental Flosser for just $7 — near its lowest price in the last 12 months, and well below its 12-month average of $35.52. That's a significant drop for a rechargeable, portable oral irrigator with a solid track record.
It holds 4.4 stars from over 48,000 reviews, which is a reliable signal for a budget oral care gadget. The 300ml tank and cordless design make it practical for daily use or travel, and the rechargeable battery means no disposable batteries to deal with.
A good pick for anyone wanting to add water flossing to their routine without spending much. If you need advanced pressure settings or a countertop model for a whole household, you'll likely want to look at a higher-tier unit.
Deal facts
Highlights
- Way below $35.52 average price
- 4.4 stars, 48K+ reviews
- Cordless & rechargeable
- Portable 300ml tank
Specifications
| Brand | COSLUS |
| Category | Health & Beauty |
| List price (MSRP) | $42.99 |
| Best-seller rank | #142 in Health & Household |
| Recent demand | 50,000+ bought last month |
| Sold by | Amazon |
Product details sourced from Amazon. Specs and availability may change.
Frequently asked questions
6 questions
Is this a good price for COSLUS 300ml Cordless Portable Rechargeable Water Dental Flosser?
At $7.00, this is 84% off the listed retail price of $42.99 — a verified saving of $35.99.
What is Amazon's return policy?
Amazon offers a 30 days return window. Free returns: Yes (most items). Restocking fee: None (marketplace sellers may vary). See the full Amazon return policy at https://thrifle.com/return-policy/amazon.
When does this deal expire?
This deal has already ended.
Is $7 a good price for the COSLUS water flosser?
Yes — $7 is near the lowest price this flosser has hit in the past 12 months (12-month low: $13.18), and well under its 12-month average of $35.52.
What are the key features of the COSLUS 300ml water flosser?
It's a cordless, rechargeable oral irrigator with a 300ml water tank, designed for portable daily use or travel. It has 4.4 stars from over 48,774 reviews on Amazon.
Where can I buy the COSLUS water flosser for $7?
The $7 price is available directly on Amazon at the product listing. No coupon code appears to be required at this price.
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