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White cordless water flosser with 300 ml tank and rotatable tip

Waterpik W40 Water Flosser 300ml oral care

SKU CH-30EQ-VQVV8 MPN W40

Cordless water flosser with a 300 ml tank, four cleaning modes, five intensity levels and ADA acceptance for travel-ready oral care

  • Power typeBattery Powered
  • Charging time24 h
  • Accessories includedMultiple Tips, Portable
  • Team affiliationNBA
  • Product colorWhite
  • Product dimensions14.33 in W × 12.83 in H × 9.06 in D
  • 300 ml tank lets you floss longer without refilling
  • 4 cleaning modes and 5 intensity levels adapt to sensitive gums and braces
  • IPX7 waterproof rating allows safe use in the shower
  • Cordless rechargeable design with 24 hour charge time suits travel
  • ADA accepted and includes multiple tips for versatile oral care

Cordless water flosser with four modes

The Waterpik W40 is a cordless water flosser designed for daily oral care. It delivers a pressurised water stream to clean between teeth and along the gumline. The unit operates on a rechargeable battery and includes multiple tips for different cleaning needs.

Suits travel and sensitive gums.

This flosser suits people who want a portable device for travel or a compact option for a small bathroom. The 300 ml tank supports a full cleaning session without refilling. Users who prefer a larger reservoir for fewer refills or a countertop model with continuous flow should consider a different style.

300 ml water tank capacity

The integrated reservoir holds 300 ml of water, which determines how long you can floss before refilling. This capacity is fixed and cannot be expanded. Check that this volume matches your routine before purchasing.

How it compares

Measured against everything we stock in Dental Care & Oral Hygiene, at today’s prices. Recalculated every night.

Price $41.99
Pricier than about 81% of the 2,485 comparable items (median $20.99).

Specifications

Product
Brand nameWaterpik
Model nameC50
Part numberC50
Product colorWhite
Power
Power typeBattery Powered
Rechargeable batteryYes
Charging time24 h
Size & build
Product dimensions14.33 in W × 12.83 in H × 9.06 in D
Product weight0.449 kg
In the box
Accessories includedMultiple Tips, Portable
More details
Team affiliationNBA

Questions about this item

Does the W40 water flosser need a USB-C power adapter to charge the internal battery?

Yes, the unit charges through a USB-C cable that is included; the wall adapter itself is not supplied, so you must provide any standard USB power source.

Can the 300 ml tank on the W40 be swapped with the 180 ml tank from a C30 model?

No, the comparison table lists each model with its own fixed tank capacity, indicating the reservoirs are not interchangeable between the W40 and C30.

How do I confirm the W40 is delivering the correct pressure after I fill the 300 ml tank?

Select one of the four cleaning modes and five intensity levels, then verify a steady, pulsating stream exits the rotatable tip without leakage from the IPX7-sealed body.

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