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expiredIzzy138 | Staff posted Jul 16, 2025 03:03 PM
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expiredIzzy138 | Staff posted Jul 16, 2025 03:03 PM

COSLUS 300ml Cordless Portable Rechargeable Water Flosser

+ Free Shipping

$10

$44

77% off
Amazon
86 Comments 51,886 Views
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Deal Details
Update: This popular deal is still available.

Bichenis via Amazon has COSLUS 300ml Cordless Portable Rechargeable Water Flosser on sale for $43.59 - $33.60 with promo code J7BN7JM2 at checkout = $9.99. Shipping is free.

Thanks to Staff Member Izzy138 for sharing this deal.

About this Item:
  • This water dental pick delivers high water pressure pulses at 1400-1800 times per minute, effectively removing 3c more plaque for deep cleaning. 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 RevOne | Staff

Original Post

Written by Izzy138 | Staff
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Update: This popular deal is still available.

Bichenis via Amazon has COSLUS 300ml Cordless Portable Rechargeable Water Flosser on sale for $43.59 - $33.60 with promo code J7BN7JM2 at checkout = $9.99. Shipping is free.

Thanks to Staff Member Izzy138 for sharing this deal.

About this Item:
  • This water dental pick delivers high water pressure pulses at 1400-1800 times per minute, effectively removing 3c more plaque for deep cleaning. 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 RevOne | Staff

Original Post

Written by Izzy138 | Staff

Community Voting

Deal Score
+85
Good Deal
Visit 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 

Sale Price
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Current Prices

Sort: Lowest to Highest | Last Updated 8/29/2025, 09:01 PM
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Amazon$29.98

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Top Comments

jeff11214
693 Posts
28 Reputation
Maybe yours is defective... We have two of these in our house. Using it since January with no issues. Battery life is great. Highly recommend for $10!
JonCllns
6 Posts
14 Reputation
If you go in and select any color but Black and try to use the code, it won't work. Even if you delete a color and add black to your cart and then the code, it still won't work. Clear your cart, close the browser window and click the link again and choose Black and the code then works. So, really, the code only works on the black version.

85 Comments

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Jul 16, 2025 04:40 PM
62 Posts
Joined Nov 2014
codee.gJul 16, 2025 04:40 PM
62 Posts
Was able to use this code on 2 of them for 9.99 each. Gifting to my inlaws
Last edited by codee.g July 16, 2025 at 10:01 AM.
1
1
Jul 16, 2025 04:50 PM
6 Posts
Joined Dec 2007
JonCllnsJul 16, 2025 04:50 PM
6 Posts

Our community has rated this post as helpful. If you agree, why not thank JonCllns

If you go in and select any color but Black and try to use the code, it won't work. Even if you delete a color and add black to your cart and then the code, it still won't work. Clear your cart, close the browser window and click the link again and choose Black and the code then works. So, really, the code only works on the black version.
2
1
Jul 16, 2025 04:56 PM
11 Posts
Joined Apr 2021

This comment has been rated as unhelpful by Slickdeals users.

Jul 16, 2025 04:59 PM
23 Posts
Joined Dec 2019
Jiggy82Jul 16, 2025 04:59 PM
23 Posts
The promo code does not work and the price has been same since past few months.
Jul 16, 2025 05:00 PM
62 Posts
Joined Nov 2014
codee.gJul 16, 2025 05:00 PM
62 Posts
Quote from CoolStep682 :
Which color did you buy?

Black
Jul 16, 2025 05:13 PM
14 Posts
Joined May 2008
bkritzJul 16, 2025 05:13 PM
14 Posts
I tried three different colors. promo doesn't work for me
Jul 16, 2025 05:18 PM
75 Posts
Joined Jan 2006
gewf631Jul 16, 2025 05:18 PM
75 Posts
Code worked - repped

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Jul 16, 2025 05:22 PM
39 Posts
Joined Jun 2013
HungL1075Jul 16, 2025 05:22 PM
39 Posts
I bought one but then the plastic when you plug it into the head of this brokr or somehow got stuck in the hole and I was never able to get that piece out so I have to throw it away. Of course it was my fault that I accidentally dropped the thing on the ground that the plastic broke off leaving the end stuck but there was no way of getting it out so this is one issue with this item. The end piece of the floss head got stuck and broke off and I was not able to use it again.
Last edited by HungL1075 July 16, 2025 at 10:27 AM.
Jul 16, 2025 05:23 PM
1 Posts
Joined Mar 2020
KingGabe25Jul 16, 2025 05:23 PM
1 Posts
Worked for me +1
1
Jul 16, 2025 05:26 PM
59 Posts
Joined Sep 2017
constructordemarcasJul 16, 2025 05:26 PM
59 Posts
I was able to buy with the code on the black one
Jul 16, 2025 05:42 PM
31 Posts
Joined Sep 2021
ImadealsJul 16, 2025 05:42 PM
31 Posts
The code worked for me, I ordered the black one.
Jul 16, 2025 06:04 PM
36 Posts
Joined May 2016
hiheaven01Jul 16, 2025 06:04 PM
36 Posts
It works. But when pay item, it goes to an error page. But the transaction went through ok with the discounted code.
Jul 16, 2025 06:08 PM
12 Posts
Joined Nov 2017
stevejiceJul 16, 2025 06:08 PM
12 Posts
Thank you!
1
Jul 16, 2025 06:21 PM
8 Posts
Joined Apr 2016
hopeforgoodJul 16, 2025 06:21 PM
8 Posts
This product is trash. Power button ( ON/OFF) switch is on wrong position. Dispenser head keeps rotating. Battery life sucks. Overall 1 out of 100 rating.
3
5

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Jul 16, 2025 06:51 PM
693 Posts
Joined Feb 2016
jeff11214Jul 16, 2025 06:51 PM
693 Posts

Our community has rated this post as helpful. If you agree, why not thank jeff11214

Quote from hopeforgood :
This product is trash. Power button ( ON/OFF) switch is on wrong position. Dispenser head keeps rotating. Battery life sucks. Overall 1 out of 100 rating.
Maybe yours is defective... We have two of these in our house. Using it since January with no issues. Battery life is great. Highly recommend for $10!
1

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