Aquasana EQ-304-20 20-Inch Replacement Pre-Filters for Aquasana Rhino

I use those filters for many years.

fits right, good value. However, if you procrastinate 2 years, 6 months and a few days to replace, and only really do so because your water pressure has dropped to the point of a slow trickle, beware. When your water pressure returns to normal thanks to the new filter, it's going to flush out all the crud that collected in the tanks that collected because of the low water pressure. If you also forget that the line needs to have the air bled out, you may end up with an angry spouse. Specifically, if she's the first one to use the water by flushing the toilet, it may sound like it's ready to explode. You may end up running into the bathroom to a very worried spouse and wonder how it appears that your sewer has backed up on the second floor of the house. Your kids and dog may then join in the bathroom and start yelling/barking that we need to get out of the house. Fortunately, with a minute or so, the toilet will settle down and after a few flushes, the brown crud in the water will disappear. Also, if you also forgot to get the finishing filter replacement cartridge, count yourself lucky or you'd probably have to replace it right away.

These filters work really well. No complaints.

These are the pre-filters for my Aquasana whole house filter. This is an affordable good quality water filtration system. These are the pre-filters, they say to change them every 3m but if you have less than 4 people in the house, can last up to 6m easily I find.

Works great for my water softener