Waterpik WP-120 Ultra Water Flosser Review

With the latest water flossing technology, this countertop Waterpik model can get teeth and gums super clean with its unique mix of water pressure and pulsations. Our Waterpik WP-120 Ultra review will summarise its effectiveness in gum health and plaque removal which leads to healthier gums.

Powered via a shaver socket, this is one of the best countertop water flossers with a longer hose than most so it doesn’t have to be situated as close to the sink.

With 10 different pressure settings and a pause button, this water flosser is easy and quick to use to give a fresher and healthier mouth. Featuring a number of different tips included in this unit, a number of different people can use this including those with implants or braces.

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Waterpik WP-120 Ultra Features

 Waterpik WP120
Our Rating4.5 out of 5 stars
Pressure10-100 psi
Pressure Settings10
Reservoir600 ml
Water Use90 secs
Power Source2-Pin Plug
Uni VoltNo
Included Accessories• Classic Jet Tip
• Pik Pocket Tip
• Plaque Seeker Tip
• Orthodontic Tip
• Tongue Cleaner Tip
• Toothbrush Tip
Warranty3 years

Waterpik WP-120 Ultra Benefits

Here are the benefits that make the Waterpik Ultra Water Flosser WP-120 one of the best water flossers on the market:

  • Effective in improving gum disease – clinical studies have shown this Waterpik is up to 50% better at reducing and removing plaque than string dental floss and the Philips Sonicare Air Floss which helps to reduce gum disease and reverse the effects of gingivitis.
  • Improves gum health – the massaging motion of the water flosser helps to stimulate gums to strengthen them.
  • Deep cleans into hard to reach areas – it can get rid of bacteria and plaque embedded deep below the gumline and in between teeth with the micro bubbles and foam which pushes into these areas.
  • Removes plaque in a few seconds – just a 3 second flush can take out up to 99.9% of plaque.
  • Can be mixed with mouthwash – use alone with mouthwash or mixed in with water for an even fresher and cleaner feel.
  • Suitable for brace wearers – using the orthodontic tip will be 3 x more effective than using string floss which is what makes this one of the best water flossers for anyone with braces. It allows you to get in between wires and brackets with ease and the brush on the tip can be used to clean around them.
  • Suitable for crowns, implants, bridges and veneers – people with these can use this water flosser too.

What Customers Say

Waterpik Classic Jet Tip

Pressure Power

This water flosser has the same amount of pressure settings as the Waterpik WP-660 which is 10. Each setting delivers a water pressure from 10 going up to 90 PSI with 1200 pulses per minute. That’s pretty powerful for anyone who prefers a much more intense pulsation. The lower pressure settings are ideal for anyone with sensitive gums which will give a gentle and soothing pulsation.

If any point you feel the pressure is too strong, there’s a pause button conveniently placed on the water flosser handle so you don’t have to make a mess whilst trying to adjust the pressure setting.

Noise Levels

Though it’s not as quiet as the Waterpik WP-250 Nano, the WP-120 is no louder than an electric toothbrush. It makes a buzzing sound when it’s on due to its motor operating but it’s not excessively loud.

Waterpik WP-120 Tips

Waterpik Tips

As standard with most Waterpik models, they come included with a range of nozzles. Some may have a few of the same tip and not include others such as the Waterpik WP-660 Ultra Pro but with the WP-120, the following tips are included:

  • Classic Jet Tip – shaped with a rounded nozzle at the end for everyday use for general cleaning. It removes plaque and food particles in between teeth and along the gumline better than traditional string floss can.
  • Toothbrush Tip – has a small round toothbrush head attached so you can conveniently brush and water floss at the same time. It’s suitable for everyday use and helps to give an even fresher and cleaner sensation.
  • Plaque Seeker Tip – designed with 3 thin filament tufts, this tip is ideal for removing stubborn plaque in hard to reach areas for people with crowns, implants, veneers, bridges or any other cosmetic work. It’s more effective than using dental floss and helps to improve gum health.
  • Orthodontic Tip – fitted with a tapered head and thin brush, this gives a gentle water flow for the effective removal of plaque around braces, orthodontic appliances or any other dental work. It can be targeted to specific areas for a more direct blast of water in between teeth or along the gumline and the brush can be used to scrub off plaque around brackets and wires.
  • Pik Pocket Tip – shaped with a pointed rubber tip at the end to enable better access below the gumline. It’s suitable for anyone with deep gum pockets (periodontal pockets) or furcations (bone loss caused by periodontal disease). Clinical tests have proven that this tip can rinse up to 90% of a 6mm gum pocket to remove food debris and prevent the common accumulation of plaque in these areas.
  • Tongue Cleaner – designed as a tongue scraper to help remove bacteria from the tongue to give you fresher breath. It’s best to use this water flosser tip on a daily basis if you are trying to reduce or prevent halitosis (bad breath).

Just like a toothbrush, each tip should be replaced every 3 months or once it’s worn out otherwise it won’t be as effective anymore. It’s only the tongue cleaner tip that needs to be replaced every 6 months.


Being a countertop water flosser, this would need to be operated via a shaver socket due to its 2 pin rounded European plug. Some bathrooms will have a shaver socket fitted and as long as it’s 230V, this can be used. Otherwise, a shaver adaptor can be bought separately and plugged in so it can be plugged into the usual 3 pin UK plug sockets.

Many other Waterpik models are quite similar to this one but when comparing the feedback from various Waterpik WP-120 Ultra Reviews from consumers, there are quite a few subtle differences from the pressure and pulsations to the noise level.

Most find this one can get quite strong in pressure but it’s very effective and only takes a 1 minute application to leave teeth feeling very clean.

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