Water Flossers
Water Flossers: A Side-by-Side Look
Compare 6 water flossers side by side: COSLUS C20 ADA, Waterpik Aquarius WP-660, Waterpik Cordless Pulse WF-20, COSLUS C30, Waterpik Cordless Advanced WP-580…
How we picked these products
We compare product identity, specifications, pros/cons and retailer links. Until approved retailer API access is available, current Amazon price, star-rating and review-count data are not republished here.
We don't crown a single "best" pick — this table lays out what's factually true about each option, side by side.
| Product | Check current price |
|---|---|
| COSLUS C20 ADA | Check current price(paid link) |
| Waterpik Aquarius WP-660 | Check current price(paid link) |
| Waterpik Cordless Pulse WF-20 | Check current price(paid link) |
| COSLUS C30 | Check current price(paid link) |
| Waterpik Cordless Advanced WP-580 | Check current price(paid link) |
| Philips Sonicare Power Flosser 3000 | Check current price(paid link) |
The brand split is the first thing to know about these six water flossers: three Waterpiks and one Philips Sonicare against two listings from COSLUS, a no-name that nevertheless holds the #1 Best Seller spot in Power Dental Flossers. The second split is format: the Waterpik Aquarius WP-660 is the only countertop unit here, while the Pulse WF-20, the Cordless Advanced WP-580 and the Philips are explicitly cordless. The list below starts with the #1 Best Seller.
COSLUS C20 ADA
The value story of this comparison and its sales leader at once: #1 Best Seller in Power Dental Flossers, with 60K+ bought in the past month -- triple the 20K+ pace of any Waterpik here. The listing is ADA accepted, the only such claim in this comparison, and carries a 300ML tank. base of the six.
Specs & pros/cons
Key specs:
- ADA accepted
- 300ML tank
-
1 Best Seller in Power Dental Flossers
Pros:
- The only ADA-accepted listing in this comparison
-
1 Best Seller in Power Dental Flossers, with 60K+ bought in the past month -- triple the pace of any other listing here
Cons:
- 4.4 trails the 4.6 of the Waterpik Aquarius WP-660
Waterpik Aquarius WP-660
The incumbent heavyweight: a countertop unit -- the only one in this WP-580's 78,118. Right now it is also the deepest discount of the past month and the #3 spot in Power Dental Flossers.
Specs & pros/cons
Key specs:
- Countertop unit, the only one in this comparison
-
3 in Power Dental Flossers
Pros:
- The only countertop model in this comparison
Cons:
- No ADA-accepted claim in the listing, unlike the C20
Waterpik Cordless Pulse WF-20
It carries the Amazon Exclusive tag -- unique to this listing here -- and ranks #2 in Power Dental Flossers, one spot behind the C20. The trade is the this comparison, tied with the WP-580 and the Philips below.
Specs & pros/cons
Key specs:
- Cordless format
- Amazon Exclusive
-
2 in Power Dental Flossers
Pros:
- Amazon Exclusive -- the only listing here with that tag
- Ranked #2 in Power Dental Flossers, one spot behind the C20
Cons:
- 4.2 average is the lowest tier in this comparison, tied with the WP-580 and the Philips
COSLUS C30
19% off. DIY mode is in the listing, and 10K+ bought one in the past month, earning the
4 spot in Power Dental Flossers.
Specs & pros/cons
Key specs:
- DIY mode
-
4 in Power Dental Flossers
Pros:
- DIY mode in the listing
Cons:
- ADA acceptance is not part of the listing, unlike the C20 above
- 4.4 trails the WP-660's 4.6
Waterpik Cordless Advanced WP-580
cut than the WP-660's 40% deal. What the premium buys is kit and among the cordless models. The 4.2 average, though, ties for the lowest in this comparison. #5 in Power Dental Flossers, 20K+ bought in the past month.
Specs & pros/cons
Key specs:
- Cordless format
- Case and shower use in the listing
-
5 in Power Dental Flossers
Pros:
- Case and shower use are part of the listing
Cons:
- 4.2 average ties for the lowest in this comparison
Philips Sonicare Power Flosser 3000
The big-brand alternative to the Waterpik dominance of this list: a of the six showing a single flat price with no deal or promo figure. spot in Power Dental Flossers and 2K+ bought in the past month, all the lowest of the six.
Specs & pros/cons
Key specs:
- Cordless format
- Philips Sonicare brand, model HX3826/23
Pros:
- Philips Sonicare branding -- the non-Waterpik incumbent of this comparison
- Cordless format
Cons:
- The only listing here without a deal or promo figure
-
10 in Power Dental Flossers and 2K+ bought in the past month, the lowest placement and pace in this comparison
Bottom line
The COSLUS C20 ADA is the value anchor: #1 Best Seller, ADA accepted, average. The Pulse WF-20 is the checkout), and the Philips Sonicare Power Flosser 3000 is the 4.2).