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frontpageNavy-Wife | Staff posted Oct 27, 2025 05:33 PM
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frontpageNavy-Wife | Staff posted Oct 27, 2025 05:33 PM

Onlyone 300ml Rechargeable Cordless Water Dental Flosser (White)

$7.00

$36

80% off
Amazon
139 Comments 92,023 Views
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Deal Details
Update: This popular deal is still available

Resource's Team via Amazon has Onlyone 300ml Rechargeable Cordless Water Dental Flosser (White) on sale for $6.99 when you apply promo code KZ7B4TOP at checkout. Shipping is free with Prime or on $35+ orders.

Thanks to Deal Hunter Navy-Wife for finding this deal.

Product Details:
  • At 1500-2000 pulses per minute at 50-150 PSI, it's 3x more effective than traditional flossing, removing 99.9% of teeth stains
  • 4 pressure settings and 5 tips for tailored care from gentle to intense. It features a memory function to save your settings and operates quietly under 55dB for effective, personalized oral care
  • BPA-Free and Upgraded 300ml Large Water Tank, Less Refilling Needed
  • Long-Lasting Battery, Portable Anywhere: Enjoy up to 30 days of use on a 3-hour charge with this compact, lightweight water dental flosser. Ideal for home or travel. Comes with a USB cable (adapter not included) for convenient charging on the go
  • IPX7 Waterproof
  • With an upgraded motor for enhanced cleaning and durability, it lasts up to 3 years

Editor's Notes

Written by megakimcheelove | Staff

Original Post

Written by Navy-Wife | Staff
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Update: This popular deal is still available

Resource's Team via Amazon has Onlyone 300ml Rechargeable Cordless Water Dental Flosser (White) on sale for $6.99 when you apply promo code KZ7B4TOP at checkout. Shipping is free with Prime or on $35+ orders.

Thanks to Deal Hunter Navy-Wife for finding this deal.

Product Details:
  • At 1500-2000 pulses per minute at 50-150 PSI, it's 3x more effective than traditional flossing, removing 99.9% of teeth stains
  • 4 pressure settings and 5 tips for tailored care from gentle to intense. It features a memory function to save your settings and operates quietly under 55dB for effective, personalized oral care
  • BPA-Free and Upgraded 300ml Large Water Tank, Less Refilling Needed
  • Long-Lasting Battery, Portable Anywhere: Enjoy up to 30 days of use on a 3-hour charge with this compact, lightweight water dental flosser. Ideal for home or travel. Comes with a USB cable (adapter not included) for convenient charging on the go
  • IPX7 Waterproof
  • With an upgraded motor for enhanced cleaning and durability, it lasts up to 3 years

Editor's Notes

Written by megakimcheelove | Staff

Original Post

Written by Navy-Wife | Staff

Community Voting

Deal Score
+422
Good Deal
Get Deal at Amazon

Price Intelligence

Model: Onlyone Water Dental Flosser, 300ML Portable Oral Irrigator for Teeth, 4 Modes and 5 Jet Tips,Rechargeable Irrigation Cleaner,Electric Flossing Machine Power Flossers & Irrigator Accessories White

Deal History 

Sale Price
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Current Prices

Sort: Lowest to Highest | Last Updated 12/26/2025, 03:30 AM
Sold By Sale Price
Amazon$22.69

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Top Comments

ChrisC1884
1121 Posts
356 Reputation
Same - this is my first water flosser and it's worked great for a couple months now. My dentist told me the same thing, that the water flossers work fine for day to day stuff, but you still want to choose conventional floss intermittently. Like having your car washed by a touchless car wash vs. using a sponge yourself - both do the job, one just does it a little more precisely/better.
dollardog
568 Posts
161 Reputation
I bought my first water flosser almost a year ago and I thought it would be enough to replace normal flossing. I was very wrong and wish I had just kept my normal flossing routine.

I've recently noticed degradation in my overall oral health as I now have cavities between my teeth even though I have brushed and used the water flosser daily. I've now added normal flossing after the water floss and the floss still picks up bits of plaque. So a word of warning to anyone thinking this will be enough to replace normal flossing — it won't.
pur
3072 Posts
752 Reputation
KZ7B4TOP still seems to work. If you're using the Amazon app you might be missing the step of tapping on the arrow that appears in the promo code box to apply the code.

138 Comments

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Nov 01, 2025 09:50 PM
6,490 Posts
Joined Sep 2013
luckygeckoNov 01, 2025 09:50 PM
6,490 Posts
Quote from MrFreePress :
I'm in for 2

Are you talking out of the both sides of your mouth?
1
Pro
Nov 01, 2025 09:55 PM
463 Posts
Joined Jul 2010
drow
Pro
Nov 01, 2025 09:55 PM
463 Posts
Quote from ck128 :
The promotional code you entered cannot be applied to your purchase.

This is picking the white color
Cause you might have the wrong seller in cart or using the app or whatever else.
  1. Use the desktop
  2. On the right in the "buy box" at the product page; goto Other sellers on Amazon
  3. Add the Product to Cart for both sellers.
  4. Check out
  5. Add promo code on checkout page
  6. Delete the item from the cart which the code didnt apply to
  7. Win
Nov 01, 2025 10:16 PM
16 Posts
Joined Nov 2021
TheNYCCharles3Nov 01, 2025 10:16 PM
16 Posts

Our community has rated this post as helpful. If you agree, why not thank TheNYCCharles3

Quote from jjmai :
Anyone ever tried using dental water pick for car detailing (cleaning dirt off seams)?
I used the bitvue one to clean the moss growth on my dad's tombstone just last week. Works very well. I couldn't even scrub the moss off with a rag but the floss took it off easily even the ones within the flower engraving. It's a great tiny pressure washer!!! I'll try to use it next time to clean the mold growing on my grout and tiles.
1
1
Nov 01, 2025 10:44 PM
1,777 Posts
Joined Oct 2007
ck128Nov 01, 2025 10:44 PM
1,777 Posts
Thank you for the detailed instructions! Yes you are 100% right about picking the right seller.

The seller need to pick is "Sold by Resource's Team" for $17 discount.

I, my hygienist and dentist thanks you!

For $7 I do feel WINNING.


Quote from drow :
Cause you might have the wrong seller in cart or using the app or whatever else.
  1. Use the desktop
  2. On the right in the "buy box" at the product page; goto Other sellers on Amazon
  3. Add the Product to Cart for both sellers.
  4. Check out
  5. Add promo code on checkout page
  6. Delete the item from the cart which the code didnt apply to
  7. Win
1
Nov 01, 2025 10:59 PM
1,777 Posts
Joined Oct 2007
ck128Nov 01, 2025 10:59 PM
1,777 Posts
Flosser is a POOR substitute for bidet.

Quote from MrFreePress :
I'm in for 2
Last edited by ck128 November 1, 2025 at 05:03 PM.
1
Nov 02, 2025 03:25 AM
359 Posts
Joined Aug 2011
tamonezNov 02, 2025 03:25 AM
359 Posts
Quote from SavingIsArt :
Dang! This ruins the happiness that many of us had from buying these water flossers at 10 bucks. Just kidding.
Gr8 price. And I personally find water flossers lot easier to use compared to the conventional thread based one, but my dentist keeps telling me to use that one though.
Try Coco Floss. It's spendy, but the clean feeling afterwards is worth.
Nov 02, 2025 02:20 PM
11 Posts
Joined May 2014
immortalmarsh1975Nov 02, 2025 02:20 PM
11 Posts
Nice find. Just bought 12 of them for 90.62 to be given out ad stocking stuffers and random gifts. Was able to use my points and then cost dropped to .50 for 12 with regulatory fees. KZ7B4TOP still works as of 11/2 @ 8:20am.
2

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Nov 02, 2025 05:21 PM
111 Posts
Joined Sep 2023
______________Nov 02, 2025 05:21 PM
111 Posts
Here I goooo
Spray my gums out
Try to get it allllll
You are my only, my onlyone
1
Nov 02, 2025 08:53 PM
20 Posts
Joined Mar 2018
GilbertoV3804Nov 02, 2025 08:53 PM
20 Posts
great deal thanks
1
Nov 03, 2025 03:58 AM
325 Posts
Joined Dec 2014
HobbesGrrrNov 03, 2025 03:58 AM
325 Posts
Didn't work, but I think this the same code given to the multi use pens I just bought
Nov 03, 2025 04:03 AM
325 Posts
Joined Dec 2014
HobbesGrrrNov 03, 2025 04:03 AM
325 Posts
Got it to work, I had changed color, and it only works on the one shown.
Pro
Nov 03, 2025 02:09 PM
2,634 Posts
Joined Jul 2004
ilovetofu
Pro
Nov 03, 2025 02:09 PM
2,634 Posts
Quote from ferociious :
Going to order this one in white to see if i get usb c, since I have the figure 8 on my previous black order.
Did you end up getting the USB-C version?
Nov 03, 2025 02:09 PM
31 Posts
Joined Jul 2015
ferociiousNov 03, 2025 02:09 PM
31 Posts
Quote from ilovetofu :
Did you end up getting the USB-C version?
No I didn't unfortunately
Pro
Nov 03, 2025 02:13 PM
2,634 Posts
Joined Jul 2004
ilovetofu
Pro
Nov 03, 2025 02:13 PM
2,634 Posts
Quote from ferociious :
No I didn't unfortunately
That sucks, but thanks for the update. I guess I lucked out getting the USB-C on my white unit then.

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Nov 03, 2025 02:25 PM
22 Posts
Joined Jul 2015
Dragonkey87Nov 03, 2025 02:25 PM
22 Posts
Anyone able to still apply the coupon?

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