Philips Sonicare C3 Premium Plaque 2 Pack HX9042/96 Brush Heads - Black

Philips Sonicare C3 Premium Plaque Defence Brush Head 2 Pack - Black
Shortlist Compare
or 10 easy payments of $4.60 with
Find in Store

Introducing the Philips Sonicare C3 Premium Plaque Defence, one of our deepest cleaning brush heads yet! This soft and flexible brushing tool adjusts to the contours of your teeth and gums, giving you up to 10x more plaque removal from hard-to-reach areas*. This pack contains two C3 Premium Plaque Defence Brush Heads that serve as a replacement or spare.

Key Features

  • C3 Premium Plaque Defense has soft, flexing rubbers sides that adapt to your teeth and gums' shape. It lets you enjoy a personalised clean and up to 4x more surface contact** than a regular brush head.
  • Enjoy easy operations thanks to the BrushSync mode pairing. It syncs to a compatible Philips Sonicare toothbrush handle and automatically selects the optimal mode for the best possible results***.
  • Rigorously tested, each Sonicare brush head boasts the perfect balance of performance, durability, safety, and comfort.
  • Philips Sonicare's (sold separately) advanced sonic technology delivers water pulses between teeth, combined with brush strokes to break up plaque efficiently.
  • The bristles' blue colour fades away as time goes by to remind users when to change to a new one. For best results, change the head every three months.
  • You can easily mount the brush head to any Philips Sonicare toothbrush handle such as 2 Series plaque control, 2 Series plaque defense, 3 Series gum health, DiamondClean, DiamondClean Smart, EasyClean, Essence+, FlexCare, FlexCare Platinum, FlexCare Platinum Connected, FlexCare+, for Kids, HealthyWhite, HealthyWhite+, PowerUp, and ProtectiveClean. Just click on and off for effortless replacements.
  • This pack contains two standard-sized C3 Premium Plaque Defence Brush Heads for your oral cleaning needs.

* Removes up to 7x more plaque vs. a manual toothbrush

** Than a DiamondClean brush head

*** BrushSync™ mode-pairing is only compatible with Philips Sonicare BrushSync™ enabled toothbrush handles

All Product Details
Brand Philips Sonicare
Product Type Toothbrush Head
Model Number HX9042/96
Dental & Mouth Care Features
Sonic Technology Yes
Number of Heads Included In Box 2
Compatible Toothbrush Head Refill Compatible with all Sonicare Toothbrush Handles
Product Width 2 cm
Product Depth 1.2 cm
Product Height 8.5 cm
Product Weight .002 kg
Manufacturers 24 Months
Philips Sonicare C3 Premium Plaque 2 Pack HX9042/96 Brush Heads - Black is rated 4.5 out of 5 by 35.
Rated 4 out of 5 by from Sonicare C3 Premium Plaque Defence [This review was collected as part of a promotion.] I was pleasantly surprised how clean my teeth felt after using these brush heads, although this is often the case when using a new brush head for the 1st time. The bristle fibres ensure that my teeth feel adequately clean and are not too harsh on my gums . I like a firmer style bristle to ensure that squeaky clean feeling but also look for it to begentle on my gums - I feel these achieve both of these requirements . I look forward to my next dental appointment to see if there is a difference in plaque reduction .
Date published: 2019-06-24
Rated 3 out of 5 by from Very good brushes but EXTREMELY expensive! Would definitely be a 5 Star rating if the price was anything close to reasonable but it’s not.
Date published: 2021-02-06
Rated 3 out of 5 by from product does what its supposed to do I feel that it was difficult to find the right brush head for my tooth brush from your web site, and I thought it was a bit expensive.
Date published: 2020-05-19
Rated 4 out of 5 by from Toothbrush Heads The brush heads and the toothbrush are really good, my dentist is pleased anyhow, haven't had a descale for ages but think the actual brushes are massively overpriced.
Date published: 2020-05-19
Rated 5 out of 5 by from Excellent brush [This review was collected as part of a promotion.] I admit I’ve tried cheaper brush heads but the proper Phillips ones are far better and well worth the money. The Phillips toothbrush heads cause the toothpaste to foam up and you can feel it going between each tooth leaving you with a superior clean feeling,the silicone around the brush head is a really nice touch as it stops the risk of potentially damaging other teeth if you knock them on the back of the brush. All in all I love these brush heads and will definitely buy them in the future.
Date published: 2019-06-14
Rated 5 out of 5 by from Great performance [This review was collected as part of a promotion.] Been using the brush heads for a few weeks now and it does actually clean my teeth properly, removes plaque ands leaves them feeling so clean, very easy to attach & clean.
Date published: 2019-06-15
Rated 4 out of 5 by from Deep clean [This review was collected as part of a promotion.] This is the first time I have used these heads on my sonicare and I found them to offer a really thorough deep clean of my teeth. The sides of the head flex slightly so you can reach the back and sides of your mouth easier. I also felt the brush heads had a bigger surface area but weren't too harsh that they hurt my gums.
Date published: 2019-06-14
Rated 5 out of 5 by from The best brush heads I have used [This review was collected as part of a promotion.] I loved using these brush heads, they are very stylish, very easy to use and provides maximum results in no time.. these make my teeth squeaky clean and reaches those little tiny areas where normal toothbrushes don't reach. You can actually feel how clean your teeth are, each time you brush.. these are very good quality and last long before you can change it .. and these are very value for money ..I would highly recommend these to everyone!
Date published: 2019-06-14
  • y_2022, m_7, d_2, h_21
  • bvseo_bulk, prod_bvrr, vn_bulk_3.0.32
  • cp_1, bvpage1
  • co_hasreviews, tv_1, tr_34
  • loc_en_NZ, sid_74269, prod, sort_[SortEntry(order=RELEVANCE, direction=DESCENDING)]
  • clientName_harvey-norman-en_nz
  • bvseo_sdk, p_sdk, 3.2.1
  • CLOUD, getContent, 16.71ms

We aim to dispatch orders within 2 days. Delivery costs are calculated based on your location and the size of your order. Furniture may take up to 8 weeks to deliver as most products are made specifically for your order. Some Customer Direct products are shipped from overseas and may take longer to arrive. Some goods may take longer to deliver if a product is currently not in stock. A staff member will contact you where this occurs.

Easy returns

If you feel your product has failed a Consumer Guarantee (as defined by New Zealand Consumer Law) then don't worry you can easily return it to your local Harvey Norman store. We'll even pay for the postage if you live in an area where there is no store. Our returns policy covers any purchased item ( conditions apply).

Questions & Answers
  • bvseo_sdk, p_sdk, 3.2.1
  • CLOUD, getContent, 217.47ms
  • bvseo-msg: HTTP status code of 404 was returned;
Product Care
With Product CareTM you can relax knowing Your purchase comes with additional protection.

Discover all the benefits Product CareTM brings you:

With Product CareTM you have certainty that your product is covered for a specific period of time. If, during the Product CareTM term, your product fails to operate as a result of an Eligible Fault*, we will provide a one-off replacement of Your Product.


Our experienced support team ensures that the assessment, replacement or remedy process under your Product CareTM is a convenient experience. Whether you are experiencing a product fault or needing toll free technical assistance, our team is here to provide support every step of the way.


Redeem exclusive Additional Benefits which will help you maintain your product and assist in an additional purchase.

There are exclusions and limitations to Product CareTM. This section should always be read in conjunction with the Terms and Conditions for Product CareTM.

Learn more about Product CareTM.

Recommended for you

Please confirm your selection

Store Picker

Travel Mode