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frontpageRed_Liz | Staff posted Oct 09, 2025 08:23 PM
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Item 1 of 9
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Item 1 of 9
frontpageRed_Liz | Staff posted Oct 09, 2025 08:23 PM

Prime Members: COSLUS 300ml Cordless Portable Rechargeable Water Flosser

+ Free Shipping

$10

$30

66% off
Amazon
15 Comments 5,665 Views
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Deal Details
Awn Tss via Amazon has for Prime Members: COSLUS 300ml Cordless Portable Rechargeable Water Flosser (Black) on sale for $29.99 - $20 w/ promo code LZZARCMN at checkout = $9.99. Shipping is free.

Note: Adapter is not included

Thanks to Staff Member Red_Liz for sharing this deal.

About this Item:
  • This water dental pick delivers high water pressure pulses at 1400-1800 times per minute to ​​target and dislodge​​ plaque. This water flosser also features multiple operation modes and multiple pressure settings to suit different oral conditions and users.
  • This water flosser features an upgraded 300ml water tank, twice the capacity of other old models, eliminating the need for frequent refills and making your oral cleaning more convenient and efficient
  • Its ergonomic handle and 5 interchangeable multiple tips ensure a comfortable and versatile experience

Editor's Notes

Written by Corwin | Staff

Original Post

Written by Red_Liz | Staff
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Awn Tss via Amazon has for Prime Members: COSLUS 300ml Cordless Portable Rechargeable Water Flosser (Black) on sale for $29.99 - $20 w/ promo code LZZARCMN at checkout = $9.99. Shipping is free.

Note: Adapter is not included

Thanks to Staff Member Red_Liz for sharing this deal.

About this Item:
  • This water dental pick delivers high water pressure pulses at 1400-1800 times per minute to ​​target and dislodge​​ plaque. This water flosser also features multiple operation modes and multiple pressure settings to suit different oral conditions and users.
  • This water flosser features an upgraded 300ml water tank, twice the capacity of other old models, eliminating the need for frequent refills and making your oral cleaning more convenient and efficient
  • Its ergonomic handle and 5 interchangeable multiple tips ensure a comfortable and versatile experience

Editor's Notes

Written by Corwin | Staff

Original Post

Written by Red_Liz | Staff

Community Voting

Deal Score
+28
Good Deal
Get Deal at Amazon

Price Intelligence

Model: COSLUS Water Dental Flosser Teeth Pick: Portable Cordless Oral Irrigator 300ML Rechargeable Travel Irrigation Cleaner IPX7 Waterproof Electric Waterflosser Flossing Machine for Teeth Cleaning F5020E

Deal History 

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Sort: Lowest to Highest | Last Updated 10/13/2025, 11:34 AM
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Amazon$29.99

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Top Comments

5ynapse
5 Posts
10 Reputation
I am a dentist in the midwest, annnnnnnd i participated in the study to get this product some certifications. So i both have expertise and I was part of a double blind study. Its good, just as good as more expensive options. That said most water flossers on the market are effective at what they do. They do not replace flossing, however given that I am fully aware the general public doesnt floss, buy this, Throw it in the shower and use it while your standing there. It is better than nothing. This is of course coming from the most skeptical and cynical dentist i know, I dont even think toothpaste is all that important ( the literature supports my opinion). So. there you go. Great deal, buy it, but more important actually use it.

14 Comments

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Oct 09, 2025 08:29 PM
70 Posts
Joined Jul 2016
TaylorVaughnOct 09, 2025 08:29 PM
70 Posts
Grabbed one. Tyfs.
Oct 09, 2025 09:05 PM
681 Posts
Joined Nov 2009
bk2002Oct 09, 2025 09:05 PM
681 Posts
thanks grabbed one.. was trying yesterday but it wasn't taking the code
Oct 09, 2025 09:52 PM
7 Posts
Joined Dec 2019
MoogVoyagerOct 09, 2025 09:52 PM
7 Posts
At 10$, I'll try it. Thanks OP!
Oct 09, 2025 10:31 PM
3 Posts
Joined Jan 2017
Mermaidlake1Oct 09, 2025 10:31 PM
3 Posts
Code not working?
Oct 09, 2025 11:39 PM
7,188 Posts
Joined May 2007
DonV1962Oct 09, 2025 11:39 PM
7,188 Posts
My wife has had one of these about six months now and still working great.
Yesterday 03:51 PM
1,533 Posts
Joined Dec 2006
GPz1100Yesterday 03:51 PM
1,533 Posts
These are disposable (as is most crap from china).

Batteries last about 6 months before needing to be recharged more often than about once a week.
Last edited by GPz1100 October 13, 2025 at 11:56 AM.
Yesterday 06:05 PM
1 Posts
Joined Oct 2025
SierraaaYesterday 06:05 PM
1 Posts
I bought one of these full price and have been using it twice a day since August, works great so far. Just ordered a 2nd one since the water tank could be a bit bigger (i have braces) so 2 will be perfect, thank you.

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Yesterday 10:30 PM
5 Posts
Joined Oct 2011
5ynapseYesterday 10:30 PM
5 Posts
I am a dentist in the midwest, annnnnnnd i participated in the study to get this product some certifications. So i both have expertise and I was part of a double blind study. Its good, just as good as more expensive options. That said most water flossers on the market are effective at what they do. They do not replace flossing, however given that I am fully aware the general public doesnt floss, buy this, Throw it in the shower and use it while your standing there. It is better than nothing. This is of course coming from the most skeptical and cynical dentist i know, I dont even think toothpaste is all that important ( the literature supports my opinion). So. there you go. Great deal, buy it, but more important actually use it.
1
Today 01:33 AM
1 Posts
Joined Oct 2025
SociableDime943Today 01:33 AM
1 Posts
Good deal. Just ordered.
Today 01:35 AM
6 Posts
Joined Oct 2025
BBbwebToday 01:35 AM
6 Posts
I have one from another brand and I use it almost every day. It's been two years, time to get a new one! Thanks OP!
Today 02:11 AM
276 Posts
Joined Jun 2007
leolawToday 02:11 AM
276 Posts
Have one of these with a different brands and they all work the same way and as well as the pik brand. Use it twice and day and don't see the battery duration deteriorate. But I am sure one day it will... but for 10 bucks, whatever. But yes, it literally operates the same way as the $80 one, so don't need to spend a fortune. The thing about portable one is that it will be hard to clean the lower jaw teeth just because you will have to tilt your head down slightly. Otherwise the straw is not able to suck the water from the top of the reservoir. Just be mindful of that
Today 03:47 AM
103 Posts
Joined May 2021
Zerro7Today 03:47 AM
103 Posts
Deal not working
Today 05:14 AM
77 Posts
Joined Oct 2009
vnuToday 05:14 AM
77 Posts
All colors are working for me
Today 05:16 AM
99 Posts
Joined Nov 2014
seregaknorrr1Today 05:16 AM
99 Posts
Quote from 5ynapse :
I am a dentist in the midwest, annnnnnnd i participated in the study to get this product some certifications. So i both have expertise and I was part of a double blind study. Its good, just as good as more expensive options. That said most water flossers on the market are effective at what they do. They do not replace flossing, however given that I am fully aware the general public doesnt floss, buy this, Throw it in the shower and use it while your standing there. It is better than nothing. This is of course coming from the most skeptical and cynical dentist i know, I dont even think toothpaste is all that important ( the literature supports my opinion). So. there you go. Great deal, buy it, but more important actually use it.
Toothpaste is not important, so your advice not to brush teeth? Or just brush with water?

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