Price history
COSLUS 300ml Cordless Portable Rechargeable Water Dental Flosser
4.4
(48,776 reviews)
🔥 50,000+ bought in past month
📈 Demand rising
$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
Highlights
- Way below $35.52 average price
- 4.4 stars, 48K+ reviews
- Cordless & rechargeable
- Portable 300ml tank
Price history
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.
Frequently asked questions
7 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.
Is this in stock?
As of the last refresh, COSLUS 300ml Cordless Portable Rechargeable Water Dental Flosser is in stock at the listed retailer. Stock and pricing can change at any time — click Buy to see live availability.
When does this deal expire?
This deal is expected to remain valid through approximately 2026-07-12. Deal prices and availability can change at any time without notice — buy soon if you want to lock in this price.
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.