It barely lasts two months. Then the tap leaks a little more than dripping. It takes 10 minutes to fill a glass?

From the standpoint of the quality of the filtered water, it is ideal.
But despite the water pressure in Athens, the water output from the filter is minimal. After one month, a crack formed (it burst) at the top and it became unusable. It was probably defective.

I used the r2 for 4 years, I was very satisfied, now due to the baby I switched to the r5 for obvious reasons. The taste of the water is excellent, I notice a difference compared to the r2 but the water pressure is definitely reduced by 50%, it's a bit of a struggle when you want to fill a pot, bottles or rinse. That's why I give it 3 stars.
7.7.2025 I am unfortunately coming back with 2 stars instead of the 3 I initially gave and maybe even that's too much. The water quality is very good, the flow has decreased a lot, to the point where unfortunately it is not functional.

I am very pleased with both the durability and the taste of the water. Of course, I don't challenge it much because I live in a village with water, so we don't have many issues with the water.

IT IS PERFECT IN TERMS OF QUALITY - WATER FILTRATION. The problem is with the filter device which has very poor flow and causes water dispersion, compared to other filters available on the market.

Good filters but they discontinued the R7 and have brought the R5 to the same and higher price.... I'm looking for alternatives...

Having experience with all the filters from the company, I can say that I consider this to be the best. The price could of course be a little lower, but if it does what it promises, it's an expense of about 3 euros a month, to drink clean water

It doesn't let chlorine pass at all, very good, just if the quality of the water is not good like in my case, you change it in 2 months at most because it has no pressure at all

Because it is quite expensive, I ended up with the r2 which, for my area that has good water, is sufficient.

Very good, it cleans the water quite well and it is very easy to understand. Its negative aspect is that it reduces the water pressure significantly, to the point where it takes about a minute to fill a large glass of water.

The only negative thing is the flow.. But I bought it knowing that! That it will run less than the simplest type (the R2) but the taste result will be better. For an economical solution, I think it is very fair!!!

Very good filtration, the water is very clean and odorless. The flow is not significantly reduced compared to the R2 and it clearly has better results. I believe it doesn't make sense to go for the R7, which has a flow that reaches the limits of torture unless you have an issue with the network and need strong filtration.

I have been using it since 2003, initially as WATERPIK (USA), and then as INSTAPURE (USA) until today. Although its production has been transferred to China from the USA, I believe it has maintained its original quality of construction. It significantly improves the quality of water (eliminates the strange smell and taste of unfiltered water in Athens).

It removes the smell-odors of the water, the R5, and you drink clean water. I replaced the R2 that I had from the original packaging because it had a smell with a taste of a tank-barrel. Its pressure is not high, but it is good enough for drinking or cooking. I will definitely buy it again

For anyone who has installed the Instapure water filter on their faucet, I believe that this particular replacement filter is the best choice for filtration - flow. Especially during the first 2-3 weeks of use, you can feel the difference compared to the R2 filter that comes with the original packaging. Its flow is practically double that of the R7 (which is the company's best filter), with which I consider it provides equivalent filtration. For this reason, having tried all three of these filters (R2, R5, and R7) for several years, I recommend the R5 as the best solution.

Much better than the regular r2 filter from instapure, which lets odors pass through. Compared to the r7, I would consider it equivalent since I haven't noticed a noticeable difference. Of course, both the r5 and r7 require good pressure to have a good flow.