# Are there any water flossers with a large water tank capacity? — Verified Specification Comparison

> All specification data verified from official manufacturer documentation.

Are there any water flossers with a large water tank capacity?

## Products

### Waterpik Classic Professional WP-72
```yaml
product: waterpik-classic-professional-wp-72
brand: Waterpik
price_gbp: 33.27
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
portable: false
flow_rate: 13 oz/min (384 ml/min)
nozzle_count: 3
pressure_settings: 6
reservoir_capacity: 35 oz (1035 ml)
```

- **Price:** £33.27 [^1]
- **Summary:** The Waterpik Classic Professional WP-72 is a countertop water flosser with six pressure settings, on-handle control, and a large 35 oz reservoir providing about 90 seconds of flossing. It includes three tips and a special reservoir with a Pik Pocket tip, making it well suited to home users, gum-care routines, and periodontal-pocket cleaning.
- **Ideal For:** This suits people seeking a water flosser with a large tank because its 35 oz (1035 ml) reservoir provides about 90 seconds of flossing before refilling.
- **Additional Sources:** [^2], [^3]

### Waterpik ION WF-12
```yaml
product: waterpik-ion-wf-12
brand: Waterpik
price_gbp: 18.41
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
portable: true
flow_rate: 13 oz per minute (384 ml per minute)
nozzle_count: 7
pressure_settings: 10
reservoir_capacity: 20 oz (591 ml)
```

- **Price:** £18.41 [^4]
- **Summary:** The Waterpik ION WF-12 is a rechargeable cordless water flosser with a 20 oz reservoir, 10 pressure settings, and seven flossing tips. Its compact design and long battery life suit people with small bathrooms, braces, implants, or other specialized cleaning needs.
- **Ideal For:** This model suits people seeking a water flosser with a large water tank because its removable 20 oz (591 ml) reservoir provides about 90 seconds of flossing per fill.
- **Additional Sources:** [^5], [^6]

### Waterpik Ultra Plus WP-150
```yaml
product: waterpik-ultra-plus-wp-150
brand: Waterpik
price_gbp: 479.87
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
portable: false
nozzle_count: 6
water_pressure: 10-100 PSI
pressure_settings: 10
reservoir_capacity: 651 ml
```

- **Price:** £479.87 [^7]
- **Summary:** The Waterpik Ultra Plus WP-150 is a countertop water flosser with 10 pressure settings ranging from 10 to 100 PSI and a 651 ml reservoir that provides about 90 seconds of use. It includes six interchangeable tips, making it suitable for everyday cleaning and people with braces, implants, crowns, bridges, or periodontal pockets.
- **Ideal For:** This product suits people seeking a water flosser with a large tank because its 651 ml reservoir provides approximately 90 seconds of continuous flossing before refilling.

### Waterpik Promax WF-23
```yaml
product: waterpik-promax-wf-23
brand: Waterpik
price_gbp: 110.9
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
flow_rate: 13 oz per minute (384 ml per minute)
nozzle_count: 5
pressure_settings: 10
reservoir_capacity: 20 oz (591 ml)
```

- **Price:** £110.9 [^8]
- **Summary:** The Waterpik Promax WF-23 is a compact countertop water flosser with a 20 oz reservoir, 10 pressure settings, SmartAdvance mode, QuietPulse technology, and five specialty tips. It suits individuals, couples, and families who want customizable cleaning, quieter operation, or specialized care for braces, implants, bridges, or sensitive gums.
- **Ideal For:** It suits people seeking a water flosser with a large tank because its 20 oz (591 ml) reservoir provides more than 90 seconds of flossing before refilling.
- **Additional Sources:** [^9]

---
## References & Sources
[^1]: GoSupps, accessed 2026-09-03. https://www.gosupps.com/waterpik-water-flosser-classic-professional-wp-72-countertop-oral-irrigator-white.html
[^2]: Waterpik Egypt, accessed 2026-09-03. https://www.waterpik-egypt.com/product/waterpik-classic-professional-water-flosser-wp-72-dyq30287/
[^3]: Amtouch Dental Supply, accessed 2026-09-03. https://www.amtouch.com/shop-by-category/preventives/waterpik-water-flossers/
[^4]: Waterpik, accessed 2026-09-03. https://www.waterpik.com/products/dental-water-flosser/WF-12CD020-1/
[^5]: Noon, accessed 2026-09-03. https://www.noon.com/kuwait-en/waterpik-ion-professional-water-flosser-rechargeable-and-portable-for-teeth-gums-braces-10-settings-7-flossing-tips-for-multiple-users-and-needs-ada-accepted-wf-12-white-packaging-may-vary/ZA22C9DF0763A3F898953Z/p/
[^6]: Waterpik Sell, accessed 2026-09-03. https://waterpiksell.com/product/ion-professional-cordless-water-flosser-white-wf-12cd020-1-2/
[^7]: Noon, accessed 2026-09-03. https://www.noon.com/saudi-en/waterpik-ultra-plus-water-flosser-5-tips-advanced-pressure-control-system-10-settings-dental-plaque-removal-tool-white-wp-150uk/Z99542EA187B49049C3AEZ/p/
[^8]: Waterpik, accessed 2026-09-03. https://www.waterpik.com/products/dental-water-flosser/WF-23W010/
[^9]: Best Buy, accessed 2026-09-03. https://www.bestbuy.com/product/waterpik-promax-water-flosser-10-settings-with-smart-advance-mode-small-quiet-design-5-tips-ada-approved-white/J79C5977GP