The Waterpik Ultra Plus takes the Waterpik Classic Jet Tip (2-pack) (part JT-450E) as its brush head; replace it every 6 months; Australian sellers list it from A$11.00 as of 5 October 2026. Fitment confirmed against the manufacturer's compatibility list.
Your electric toothbrush
Waterpik Ultra Plus
Electric toothbrush
Confirmed against Waterpik's listConfirmed against Waterpik Australia's compatibility list
Not yours? ChangeSave it · remind me every 6 months
Takes the JT-450E brush head
Classic Jet Tip (2-pack) · replace every 6 months · check the code on your old part before ordering.
Your electric toothbrush
Electric toothbrush
Confirmed against Waterpik's listConfirmed against Waterpik Australia's compatibility list
Takes the JT-450E
Brush head · every 6 months · check the code on your old part.
Other Waterpik electric toothbrushes that take the JT-450E
GenuineGenuine Waterpik
$11.00 each
2-pack $22.00
Chemist Warehouse · 5 OctLowest genuine · Chemist Warehouse · checked 5 Oct
CompatibleCompatible option
See seller
No compatible seller tracked yetNo compatible seller tracked yet
Genuine: made by Waterpik. Compatible: another brand. Check certification on the seller's page.Genuine is made by Waterpik. Compatible is made by another brand. Check the seller's certification details before choosing.
Lowest price · $11.00 each · 2-pack $22.00
Chemist Warehouse. Every seller we track is listed below. Some links earn us a commission. Some seller links earn us a commission, at no extra cost to you.
Compare 3 sellers
AUD, before delivery. Each price shows when it was checked.
Genuine Waterpik
3 sellers
Opens Chemist Warehouse in a new tab. Their page is the source of truth for price, delivery and returns.
How long it lasts
Usually every 6 months.
Not due yet?
Get a nudge when your filter is due — it's every 6 months. One email two weeks before, no newsletter. Manage or stop it anytime.
How to change the brush head in your Waterpik Ultra Plus
Watch the guide or follow the steps.
- 1Press the eject button on the handle and pull the old tip out.
- 2Push the new tip in until it clicks.
- 3Replace every 6 months.
Every number this part goes by
- Retail name:
- Classic Jet Tip
- Retail name:
- JT-100E
- Retail name:
- JT-450E
- Retail name:
- Waterpik Classic Jet Tip
Sellers list any of these; they are the same part.
About your Waterpik Ultra Plus
Waterpik electric toothbrush, electric toothbrush — Counter top. Its brush head is the Classic Jet Tip (2-pack), part JT-450E, changed every 6 months.
Also in this electric toothbrush: Waterpik Orthodontic Tip (2-pack) (every 3 months), Waterpik Pik Pocket Tip (2-pack) (every 3 months), Waterpik Plaque Seeker Tip (2-pack) (every 3 months), Waterpik Tongue Cleaner Tip (2-pack) (every 6 months), Waterpik Toothbrush Tip (2-pack) (every 3 months).
Where the model number is: The range name is printed on the handle; the type number is in small print on the underside of the handle.
Fits these 9 Waterpik models
Common questions
- Which brush head fits the Waterpik Ultra Plus?
- The Waterpik Ultra Plus takes the Waterpik Classic Jet Tip (2-pack) (part JT-450E).
- How often should I replace the brush head in my Waterpik Ultra Plus?
- Every 6 months, or sooner if it looks worn.
- Where can I buy the JT-450E in Australia?
- We track 3 Australian sellers for the JT-450E; the lowest listed price when we last checked was A$11.00 at Chemist Warehouse. Prices are re-checked daily and dated on this page.
- How do I fit the JT-450E in a Waterpik Ultra Plus?
- No tools, a few minutes: 3 steps, listed on this page with the replacement video where the maker has one.
- What happens if I don't change it?
- Splayed bristles clean less and can hurt gums; the indicator bristles fade to show it is due.
Something looks wrong with the Ultra Plus match? . Reports go to a person, not a bot.