What is the NSF certificate in relation to water filtration?

NSF (National Sanitation Foundation) certification is independent verification that a water filtration product has been tested against specific NSF/ANSI standards for safety, integrity and filtration performance. It is the premier independent global organisation, backed by the World Health Organisation, for public health and safety relating to water quality and safety.

Why NSF certification is important

Independent certification gives customers confidence that a system’s capabilities have been assessed against recognised industry standards, rather than relying solely on a salesperson’s claims. 

NSF certification verifies, through testing, that:

  • The system can reduce the contaminants claimed by the manufacturer.

    NSF testing confirms that the system in question performs as claimed for the specific contaminants covered by its certification.

  • The system is structurally sound, and it doesn’t add harmful substances to the water.

    Testing checks the materials and construction to make sure the system works for the intended application and doesn’t negatively affect water quality during use.

  • Advertising, product literature and product labelling do not contain false or misleading information.

    NSF reviews how certified products are represented, helping to ensure any information provided to customers accurately reflects the system and its certified capabilities.

  • NSF conducts annual unannounced inspections of the production facility, and each model is periodically retested.

    Ongoing inspections and periodic retesting ensure the product continues to meet NSF requirements after initial certification.

NSF/ANSI 42

Our CHF system is certified to NSF/ANSI Standard 42, the standard specifically covering drinking water systems that improve the aesthetic and safety qualities of water:

  • Taste & odour: Stripping away the taste and smell of chlorine.

  • Appearance: Improving visual clarity.

  • Material safety: Making sure the unit itself doesn't introduce contaminants.

But NSF/ANSI 42 certification isn't the one single checkbox. 

It's actually built on three separate pillars: here's where it gets important.

Whole-home water filtration system installed in a front yard

The three requirements behind NSF certification

  • Material Safety

    Confirms that every internal component meets NSF's strict material-safety requirements, so no harmful chemicals leach into your home's water supply.

  • Structural Integrity

    Verifies the housing can withstand extreme pressure spikes and heavy flow rates, protecting your home against leaks, cracks and system failure.

  • Performance

    Verifies precise contaminant removal rates over time, ensuring consistent, lab-backed filtration from day one.

The Certification gap most filters don't mention

Most water filters on the market test for only two of the three pillars: material safety and structural integrity.

That means NSF has verified the plastic won’t leach chemicals into your water and checked that the housing won’t crack under line pressure. What they didn’t verify is whether the filter actually removes any contaminants. 

A “component-only” certification is basically a stamp of approval for a sturdy, non-toxic pipe. It tells you the unit is safe to hold water, not that it actually treats it. 

We test and certify our whole system against all three pillars, including performance. We don’t rely on assumptions: every contaminant-reduction rate is backed by independent, lab-proven results. You’re not just buying a plastic container; you’re buying actual filtration. 

Woman drinking from a water bottle while sitting next to a dog

How our whole-home certification compares

Pillar Component-only certification Our whole-home system certification
Material safety Certified Certified
Structural integrity Certified Certified
Performance Not certified Certified

Your CHF NSF-certified system

Standard water filters often settle for basic safety ratings, proving the plastic is non-toxic and the shell won’t burst under pressure. Our whole-home systems actually certify what matters most for your home: real contaminant reduction. 

By securing full-system NSF 42 certification across all three pillars, we verify every unit delivers lab-proven reductions in chlorine, smells and tastes from your main supply line straight to every tap in the house. 

No relying on partial component listings or unverified claims. Every whole-home system comes with complete, full-system NSF validation, backing your filtration with lab-tested results from day one. 

Service technician and customer toasting with water in a kitchen

CHF Certified Capacity and Flow Rates

Our specific CHF systems that have full NSF 42 certification performance rates are:

System Filter configuration Flow rate (L/min) Capacity (L)
CHF - 6000 - 10” 10” G2 Sediment Reduction 10” G2 Softening resin 10” G2 Carbon Block 15 L/min 150,000 litres
CHF - 6000 - 15” 15” Sediment Reduction 15” Softening resin 15” Carbon Block 22.7 L/min 225,000 litres

Taps and faucets typically range between 5-8 L/min while a shower head is 7.5-9 L/min.

The average Australian household uses ~175,000 litres per annum (3).

Our performance results can also be seen on the NSF product page.

Home filtration products

OVER 2000 5 STAR REVIEWS

Australia’s original whole home filter

Standard water filters often settle for basic safety ratings, proving the plastic is non-toxic and the shell won’t burst under pressure. Our whole-home systems actually certify what matters most for your home: real contaminant reduction. 

By securing full-system NSF 42 certification across all three pillars, we guarantee every unit delivers lab-proven reductions in chlorine, smells and tastes from your main supply line straight to every tap in the house. 

No relying on partial component listings or unverified claims. Every whole-home system comes with complete, full-system NSF validation, backing your filtration with lab-tested results from day one. 

Take a deeper dive

The Complete Home Filtration experience Premium service at every step

  • Step 1

    Free in-home water assessment

    A qualified water technician tests your water, assesses installation points and answers any questions about your home’s water quality. From there, we design a tailored solution to match your needs.

  • Step 2

    Professional installation

    Experienced plumbers deliver and install your system, understanding exactly how our units are designed to perform.

  • Step 3

    Ongoing aftercare and support

    Our unparalleled local support teams provide long-term assistance, filter reminders and maintenance guidance so your system continues to perform at its best.

What our customers are saying

OVER 2000 5 STAR REVIEWS

Customers consistently highlight improvements in taste, confidence in water quality and the convenience of having purified water available at home.

Wonderful service, and we are very happy with the product (did a lot of research and CHF seemed the best), it’s changed our lives! No more chlorine smell, the water tastes great, feels softer (I didn’t understand water harness/softness before getting the system but now I do!). The box looks fairly discrete too, the plumbers were excellent too. Really really recommend!!!

Anita E

I have to thank Levi from Complete Home Filtration for helping us create a healthier lifestyle through water!! Levi was an absolute champion of a man who we connected with energetically and understood what we wanted. The water that we previously had was strong chlorine smell throughout all taps, itching from the water being so dry. We now have a chlorine FREE household no more heavy metals or chemicals. Remember 70% of the Human body is built up of WATER.

Me

Fantastic! We love the difference in the quality of our water. And my shower no longer smells like chlorine. Tony was the plumber who did the installation and he was great! The actual filter unit is very discreet in our garden. ⭐️

Kirsten D

From our first request for a quotation to the install we have received nothing but 5-Star service from Complete Home Filtration. We now have chlorine free water coming out of our taps and the difference in our skin and hair is incredible not to mention our appliances. The best upgrade we have made in a long time.

Gylnis J

The water is super nice, no taste of chlorine, it’s clear unlike what the water was previously as we have lots new house getting built and kept getting brown water.

Kahli M

Have to say l have been thrilled with every step of the organising of my system. The system it self is fabulous. Im So thrilled. The taste is excellent. Due to cancer treatment lm noticing everything where chemicals are concerned. This water is so pure lm thrilled to be able to drink water again. Many thanks to all involved.

Michele T

Great product and service. The change in water taste is instant and quite noticeable. Worth the investment. CHF have been great from sales to install. Good work, team CHF!

Vincent R

Impressed would be an understatement. I sent an email enquiry and within that same week I had my CHF system installed. Everyone I dealt with was hardworking and professional and my plumber Paul who installed the system was an absolute gem of a guy who went the extra mile to reinstall some of my driveway pavers that were torn up by a previous company. Couldn’t recommend them more, great work guys 🙂

Jesse R

From the booking to the salesperson coming out and installation it was a fantastic experience and customer service was excellent. So happy with our filter. Water feels soft, clothes feel better after washing and it taste amazing! Best investment.

Amelia & Aaron S

I had my filter installed yesterday and I just came here to say I am so happy with my whole experience with this company! I was so impressed with Simon who came to my house and knew his product inside and out, and Brian who came yesterday to do the install. Both men were also very likeable and answered all questions with ease. Plus, my water tastes next level! I can’t believe I can drink from my tap!

Dana W

Jarryd was amazing, very knowledgeable and professional. The whole process was easy and straightforward, and our water has never been better. My partner’s skin has cleared up and the water tastes great. From booking to the in‑home consult, everything was simple and an enjoyable experience. Highly recommend to anyone wanting better water!

Luke

Absolutely thrilled with our Complete Home Filtration system! From the initial consultation to installation, the team were professional, friendly, and knowledgeable. The difference in our water quality is incredible — it tastes amazing, smells fresh, and even our skin and hair feel softer.

Paul D

A year post installation and my complaint is every time we go on holiday we count down to when we are home again! Unfilitered water leaves our skin dry, my hair feels unwashed and I have to use more soap and shampoo to get not even close to the results from our home filtration.

Alesha N

Very happy with complete home filtration system. No longer does my family have to put up with the smell of freshly chlorinated water! No longer do we suffer dry skin and hair!

Simon W

Very happy with our CHF experience from salesperson Thomas to installers. Most importantly my 7 year old daughter no longer has dry skin/scratching issues. It used to be constant. Had to keep applying lotion and even then she’ll scratch. My wife’s face is clearing up too as she has quite sensitive skin. Overall the family is drinking more water. We’ve tested the water and no chlorine! Love sipping in the shower knowing this.

Eug S

It was a smooth transaction starting from the beginning. It was explained properly how it works and the benefits on our health. No more chlorine taste on our top water, missis and the children already not complaining on dry skin and itching. Great Product and Service

Garry M

My 6yo son has been battling eczema since 6 months old after showers he would have dry itchy skin could see it on his face we changed plumbing to copper pipes and that helped a lot but now we have this whole house filtration system he has told me the water isn’t itchy anymore and we can see his face is not dry and flaky. The water tastes wonderful as well.

Budgie B

Great service from the team, from the first consultation to the final installation. We highly recommend this company. Our water quality is so much better, no taste of chlorine and the comfort of knowing that anything nasty can’t get through. The best thing is no need to buy bottled water and the shower feels great. It’s only been a few days since the installation but we are so happy with it all. Thank you Complete Home Filtration!!!!

Larry B

The water is remarkably softer and you definitely feel the benefits on your skin and hair pretty well immediately. It feels great to water my vege garden with water that isn’t detrimental to the soil.

Matthew B

From start to finish, the team at Complete Home Filtration have been exceptional! The installation was seamless, the technicians were professional and knowledgeable, and the difference in our water quality was immediate. Our water tastes cleaner, feels softer and there is a noticeable difference in our appliances and shower screens too. Highly recommend to anyone wanting a genuine, long term water solution!

Justin S

Great filtration system, really softens and cleans town mains water. I would definitely recommend this product for those with skin conditions and want to protect their health. I personally enjoy the fact my skin is not always so dry and I tend not to be to thirsty after a glass of this water. 🤗

Jason C

Wonderful service, and we are very happy with the product (did a lot of research and CHF seemed the best), it’s changed our lives! No more chlorine smell, the water tastes great, feels softer (I didn’t understand water harness/softness before getting the system but now I do!). The box looks fairly discrete too, the plumbers were excellent too. Really really recommend!!!

Anita E

I have to thank Levi from Complete Home Filtration for helping us create a healthier lifestyle through water!! Levi was an absolute champion of a man who we connected with energetically and understood what we wanted. The water that we previously had was strong chlorine smell throughout all taps, itching from the water being so dry. We now have a chlorine FREE household no more heavy metals or chemicals. Remember 70% of the Human body is built up of WATER.

Me

Fantastic! We love the difference in the quality of our water. And my shower no longer smells like chlorine. Tony was the plumber who did the installation and he was great! The actual filter unit is very discreet in our garden. ⭐️

Kirsten D

From our first request for a quotation to the install we have received nothing but 5-Star service from Complete Home Filtration. We now have chlorine free water coming out of our taps and the difference in our skin and hair is incredible not to mention our appliances. The best upgrade we have made in a long time.

Gylnis J

The water is super nice, no taste of chlorine, it’s clear unlike what the water was previously as we have lots new house getting built and kept getting brown water.

Kahli M

Have to say l have been thrilled with every step of the organising of my system. The system it self is fabulous. Im So thrilled. The taste is excellent. Due to cancer treatment lm noticing everything where chemicals are concerned. This water is so pure lm thrilled to be able to drink water again. Many thanks to all involved.

Michele T

Great product and service. The change in water taste is instant and quite noticeable. Worth the investment. CHF have been great from sales to install. Good work, team CHF!

Vincent R

Impressed would be an understatement. I sent an email enquiry and within that same week I had my CHF system installed. Everyone I dealt with was hardworking and professional and my plumber Paul who installed the system was an absolute gem of a guy who went the extra mile to reinstall some of my driveway pavers that were torn up by a previous company. Couldn’t recommend them more, great work guys 🙂

Jesse R

From the booking to the salesperson coming out and installation it was a fantastic experience and customer service was excellent. So happy with our filter. Water feels soft, clothes feel better after washing and it taste amazing! Best investment.

Amelia & Aaron S

I had my filter installed yesterday and I just came here to say I am so happy with my whole experience with this company! I was so impressed with Simon who came to my house and knew his product inside and out, and Brian who came yesterday to do the install. Both men were also very likeable and answered all questions with ease. Plus, my water tastes next level! I can’t believe I can drink from my tap!

Dana W

Jarryd was amazing, very knowledgeable and professional. The whole process was easy and straightforward, and our water has never been better. My partner’s skin has cleared up and the water tastes great. From booking to the in‑home consult, everything was simple and an enjoyable experience. Highly recommend to anyone wanting better water!

Luke

Absolutely thrilled with our Complete Home Filtration system! From the initial consultation to installation, the team were professional, friendly, and knowledgeable. The difference in our water quality is incredible — it tastes amazing, smells fresh, and even our skin and hair feel softer.

Paul D

A year post installation and my complaint is every time we go on holiday we count down to when we are home again! Unfilitered water leaves our skin dry, my hair feels unwashed and I have to use more soap and shampoo to get not even close to the results from our home filtration.

Alesha N

Very happy with complete home filtration system. No longer does my family have to put up with the smell of freshly chlorinated water! No longer do we suffer dry skin and hair!

Simon W

Very happy with our CHF experience from salesperson Thomas to installers. Most importantly my 7 year old daughter no longer has dry skin/scratching issues. It used to be constant. Had to keep applying lotion and even then she’ll scratch. My wife’s face is clearing up too as she has quite sensitive skin. Overall the family is drinking more water. We’ve tested the water and no chlorine! Love sipping in the shower knowing this.

Eug S

It was a smooth transaction starting from the beginning. It was explained properly how it works and the benefits on our health. No more chlorine taste on our top water, missis and the children already not complaining on dry skin and itching. Great Product and Service

Garry M

My 6yo son has been battling eczema since 6 months old after showers he would have dry itchy skin could see it on his face we changed plumbing to copper pipes and that helped a lot but now we have this whole house filtration system he has told me the water isn’t itchy anymore and we can see his face is not dry and flaky. The water tastes wonderful as well.

Budgie B

Great service from the team, from the first consultation to the final installation. We highly recommend this company. Our water quality is so much better, no taste of chlorine and the comfort of knowing that anything nasty can’t get through. The best thing is no need to buy bottled water and the shower feels great. It’s only been a few days since the installation but we are so happy with it all. Thank you Complete Home Filtration!!!!

Larry B

The water is remarkably softer and you definitely feel the benefits on your skin and hair pretty well immediately. It feels great to water my vege garden with water that isn’t detrimental to the soil.

Matthew B

From start to finish, the team at Complete Home Filtration have been exceptional! The installation was seamless, the technicians were professional and knowledgeable, and the difference in our water quality was immediate. Our water tastes cleaner, feels softer and there is a noticeable difference in our appliances and shower screens too. Highly recommend to anyone wanting a genuine, long term water solution!

Justin S

Great filtration system, really softens and cleans town mains water. I would definitely recommend this product for those with skin conditions and want to protect their health. I personally enjoy the fact my skin is not always so dry and I tend not to be to thirsty after a glass of this water. 🤗

Jason C

Frequently asked questions

Speak to your local experts

We’re here to help you choose the right whole home filtration solution for your home.