PSI Water Filters

I'm a Lic'd plumber and purchased a CK5620 Water Filter for taste and odour from PSI which I installed on 29th Oct 2025. In early January it started to not work properly, turning on the filtered water tap would get a couple of drips then afetr about… Read more

10 seconds the water would start to flow slowly then build up to regular flow. I noted it did this if I didn't use the filtered water for a day or so, which was normal as I only really use it for filling the kettle of my coffee pod machine. Clearly there is an issue with the filter especially given the system is 18 years old and has always worked flawlessly, even the old filter the new one replaced was 3 years old and still flowed perfectly. So I email Callum, send him a video and explanation of what is happening, advise that I have checked all the plumbing system and everything is perfect yet the filter is having an issue. His response was essentially "the filter is blocked that why there's no flow". The filter does flow, just not properly, the filter has been removed and checked, there is no blockage, I am also connected to mains water not tank water which rules out any chance of blockage from sediment. I email back to say it does flow so can't blocked and I am ignored.

As a plumber I'm pretty sure I can figure out any issues with my potable water system. I warn anyone against dealing with PSI Water Filters as any issues will be disregarded and then you will be ignored. No phone call, no questions, no lets look into what's going wrong, not even goodwill.

Maybe the product is a chinese copy not the real Omnipure US product? suffice to say as a Lic'd plumber I would never purchase from them again, would never recommend them and warn anyone to look elsewhere to purchase filters.

I emailed this business to return an item I purchased. They have a 30 day money back guarantee. No reply. I have been refused a refund by PayPal. Please do not use this business they are a ripoff. Show details

Great product great staff – These people really know water filters! Every time I have a question and ring them up, they are patient and helpful. It is so rare to find a telephone number for businesses these days, let alone responsive and friendly people at the other end of the phone line. They even chased me up to answer my question. Ordering is easy and shipping is quick. The filters are of high quality and make my water taste great. I highly recommend buying from them. Show details

Cannot fault this company's products and service – Amazing company with great quality, long-lasting products. We purchased a reverse osmosis water filter in about 2009 which is still going strong. If I ever have questions or concerns I know I can email psi and get a super-prompt response, without any sales pressure or recommendations to buy unnecessary parts. A few years back, a valve on our… Read more

filter failed and Peter talked me through its replacement and tests to ensure I was installing the new part correctly. Just amazing service!!

Literally the best customer service ever! – We bought our water filter through PSI about 3 years ago and honestly, I'd never look elsewhere. Callum always replies SO quickly and gives really clear advise. We had a small leak and Callum literally replied in less than an hour and had it all sorted for us so quickly. I've never experienced such amazing customer service anywhere else. Thank you Callum - you are the reason we keeping coming back!

Great product but just rude and unacceptable language – I phoned to request a part on our water filter. We have been pleased with the product. [name removed] swore at me on the phone when it was revealed that we had not been purchasing the filters from him " this gives me the craps...you only ring me when you are stuck for a part.. " I was taken aback...as we live in a regional area and access filters from our local business. We will never purchase from him again.

Terrible – Tried to buy a flow constrictor and was planning to buy RO unit next. Payed with paypal and soon after received an email with note about cancellation of the order and refund with the reason "insufficient address". No attempt to contact me before cancellation. When I called and explained that the address is valid and correct, I asked if I need to… Read more

reorder. [name removed] told me not to and "he doesn't want my order" because it already costed him 30 cents in paypal refund.

Great way to do businesses!

Poor Customer Service – After installing one of the under sink water filters from PSI Water Filters it was leaking from both the inlet and outlet. I tried to tighten up the hoses but I was still experiencing small leaks from the inlet in particular. I called PSI Water Filters on a Saturday and left a message asking for a callback which never happened. I called again on… Read more

the following Tuesday, got to speak to someone who sounded like he just stepped out of bed. I was suggested to go out and purchase some thread seal tape, take apart the filter and reassemble it all again. The advise was given by a person how sounded like he just couldn't care any less about the $350 water filter I had purchased. What I asked to speak to the owner I was advised he wasn't available. What a joke - stay clear of this mob. The filter will be returned later today and I'll buy from someone else who actually knows about customer service.

Great service, quality products – Purchased a twin undersink filter system as well as combined tap from PSI Water filters about a year and a half ago. When I was researching and asking questions, they were quick to pick up the phone to answer all my questions, and provide really good insight into what I was after, and not pushy at all. I decided to get our trusted plumber to… Read more ·  1

install the system for me, and when he looked at everything, he asked me about where I got it from, and he bought one the same to put in his daughters house, which, to me, speaks to the quality of the system I purchased (I'm certainly no plumber).

All the products that I got were high quality, and I wouldn't want anything less for something which I use every day, especially when it comes to drinking water!

I couldn't recommend these guys highly enough.

Can't recommend more highly – Been using PSI for years and can't recommend more highly, they're always super helpful over the phone when I've needed help working out which filters I need for two houses - one on mains water and one on rain/ tank water. Their prices are great too some companies charge almost double for the same products! Show details

Best filter – After a lot of research I decided to buy the under sink reverse osmosis 5 stage filter from psi water. The company is a reputable Australian company and I love their customer service you can get advice over the phone directly and very helpful if you don't know which filter to choose!

Great Aussie business – Been using the under sink filter for 3 years and water is delicious, se qld gets hot so we drink plenty ,even water. Friendly and prompt service for replacement filters, no reason to look any further.

Great company – have being using them for as my main filter supplier for the last ... 5 years. No issues prices are very competitive and all the hardware is 100% legit, unlike couple of other random ebay purchases that i did earlier on. very fast shipping and prompt responses to questions great work guys, thank you  Show details

Great product and service – I wanted to replace an exisiting system and PSI Water filters provide a kit to do it making it super easy. They even label which filters I chose on the filter housing to make it easier to reorder. The staff were great to deal with and the online ordering option I liked for reordering replacement filters.  Show details

Good service and product – Bought PSI under-sink 5 stage RO system and the replacement water filters... quality product. Thanks Peter for good service and advice. Show details

5 star attention to detail – Moved into house 6 years ago and found we had a water filter from PSI. I phoned Stephanie who was so professional in telling me the history of what and when previous owners had ordered so I knew immediately what was required. What is ordered arrives quickly with fitting spanner included. Recommended for personal service and top quality filters. Show details

Australian company that dispatch great products – I have been purchasing my filters from PSI for nearly ten years . Great prices and fast dispatch. Like most people I will check competition pricing but they are generally frilly websites with but not Australian based service . PSI prices are comparable or better, so loyalty to PSI wins each time .

Replacement Filters for Boss Reverse Osmosis System – Thank you Peter for your excellent service and advice when I needed to replace the four filters installed in a Boss Reverse Osmosis System fitted to my houseboat on Lake Eildon in Victoria. The supplied filters were competitively priced and were delivered by Australia Post in several days. Testing using a TDS meter has confirmed an excellent result with the filters supplied.  Show details

Best Experience to Date – Best instructional DIY. All required parts supplied. Informative, honest, straightforward. Real people offering real service. Quality product and a pleasure.

Great service every time over the last ten years – I've been using PSI Water Filters for over ten year, mostly for replacement filters in the twin under sink system they sold me. The descriptions on their web site are good, but if you're really not sure then they're always happy to talk you through what is needed on the phone. There web portal makes re-ordering really also as you can re-order the same products with one click. Show details

Excellent water filter system and customer service – I purchased a '4 Stage Reverse Osmosis System' about 4 years ago. Customer service is always outstanding. I had a lot of questions where Peter was always happy to answer all of them. When I received my product, I had some more questions where it was great to receive a reply within an hour compared to other businesses, you usually have to wait for… Read more

days. I just made another purchase for replacement filters where customer service is still outstanding.

Great Service – Great service.Took time to explain everything to me and answered all the questions I had. Comes highly recommended. Very easy to deal with. Fast delivery. Will recommend to family and friends. Show details

Positive experience – I have been buying replacement under bench water filters from PSI for several years now and I have always been very happy with the service, product and postage in that time.

Replacement Under sink RO filters and housings – Have used PSI water filter services for a several years, for my current under sink RO system . They offer a wide range of quality products and services. Peter is also very helpful and has a vast experience in the industry. While changing my filters on my system I noticed a couple of cracks inside the housing. Peter assisted me in getting the… Read more

correct replacement housings. He also informed me that my system had the cheaper Taiwan housings which are poor quality. So I got the better quality made in USA housings, after Peters advice.

Items are well packaged for postage, and cost is very reasonable. 5 star company all round.

Great product, always helpful – We bought a RO system and chiller almost 5 years ago and still incredibly happy with it and the service received by PSI. Their communication & ongoing after sales assistance has been excellent Show details

The BEST ever water filters!!! – Countertop Filter. Ive been using mine for over 10 years now and I just love it. Before purchasing I did my research and found Peter at PSI the most studied expert on the subject and also he is so very helpful if you are confused. He knows water and all you need do is tell him where you live and he has the right filter for your area. So reasonable too. The sparkling clear water is sooo good. Show details