Premium Universal Replacement for 4 Stage Reverse Osmosis Systems Review

I used this to replace filters in my reverse osmosis system at home. The flow was so strong after the replacement that I was sure the filters weren't working, just water pouring out of the tap. So I bought a B073713G5F solute meter. The filter actually worked very well, reducing the dissolved solids from 60 mg/l to 5 mg/l! Another test showed that the water was much cleaner. So I highly recommend these filters as they work well and even better than the original filters.

The post-charcoal filter was leaking in its sealed base. All other filters fit well and installation was easy. I had to contact the seller about a leaking filter and was surprised by the quick response and hassle free replacement of the defective filter. After replacing the filter, everything was golden, there was no leak and purified water went out. Although a filter was broken, the seller quickly fixed the problem. It really is a great economical way to keep a proper filter change schedule…

This filter set meets my expectations. That's all you need to rebuild a four-stage reverse osmosis system. The membrane should be changed about every 5 years. My only complaint that made me give it 4 stars instead of 5 is that the post filter is threaded instead of a quick connect type which is clearly stated in the product description. The seller should strongly consider replacing the mail filter with a fast connection type. It is very easy to change from a threaded filter to a quick change…

I used this filter set to replace filters in a Formula Model III/VIII system. I had no information on this system apart from the brochure I left behind, but it turned out to be fairly standard and probably hasn't been serviced in years. This is by no means an exhaustive list of instructions (they're easy to find on the internet), but here are some of the features I've come across when exchanging. 1) Changed pre-filter. Had to be unscrewed with a strap wrench, otherwise without incident. I…