Pentair Pentek RFC-20BB Big Blue Carbon Water Filter, Whole House Heavy Duty Radial Flow Carbon Replacement Cartridge with Granular Carbon (GAC) Filter, 20" x 4.5", 25 Micron, Pack of 6, White

I have a hard iron well, this filter is in place before the softener and it works very well. I change my filter every 4 months. When I swap again I'll update with pictures but this filter does what it is supposed to with very little to no water restriction. Pentair has another similar charcoal filter GAC blue solid body and the water restriction is horrible. This filter works very well. Definitely recommend!No smell, no color.This can also be used in a singular or in line filter system with no water restriction.

I love being able to have a subscription for this arriving every 3 months. I know when I receive it, it's time to change out the current one.

A fraction of the price I have paid my service people in the past. They even used my supplied filters.

I have a well with more iron then I want. I have a water softener and uv filter in line with this. I started out with the pleated type of filter and within a week my water smelled pretty bad, kind of like cat pee. Was not nice taking a shower, I gotta tell you. My well company suggested this one, and for the most part it is working for me fairly well. I've got almost 2 weeks of usage out of it and most days the water does not smell, much, maybe a little like dirt, but very faint. The taste is great and the results, I can live with. I will see how it works over time, but I would expect that in most situations this is a great filter.

I just finished installing a complete whole house water filtration system. I used only pentek filters and housings. I'm very happy with the performance of my system and how well it all went together. Here's a breakdown of the all the components I used in my system. I went to great length researching what works and found it wasn't easy going thru each pentek filter and it's function. The goal was to reduce some sediment, iron deposits from old iron pipes and remove any chemical taste. The water tastes great now and is crystal clear.Components:-Pentek Big Blue 20" Filter Housings-Housing Bracket for Big blue 10" and 20" filterFilters IN ORDER:1-Pentek DGD-2501-20 Spun Polypropylene Filter 20 micron dual stage to 1 micron.2-Pentek 155263, RFFE20-BB Radial Flow Iron Removing Filter3-Pentek RFCC-BB Carbon Filteryou can add another Filter after the Carbon for media if you want. Not necessary but is an option or run 2 sediment filters in beginning of the system.-Various copper pipes and PVC pipes to build the system. I highly recommend a bypass valve and a way to shut off the water to your filters if you need to change them without losing water pressure to the house.-I experienced nearly 0 PSI drop thru the 3 filters and no noticeable change in flow rate.

I contacted the Pentair company regarding a replacement filter. Verifying what I had installed by my water quality supplier, this filter was less expensive by about 50% and worked. I will be reordering.

Same as the brand at a much better price!

I have Amazon set to send me a new filter every six months to filter my well water that has high iron content and a slight smell. This filter brings the water to above bottled water quality.

We have been using this filter for some time and I like the fact that my drinking water does not smell of chlorine.

Good product, fast delivery.

For our water softener..had hoped it came in a two pack as before..much cheaper that way!

Good price prompt delivery

This product arrived earlier than expected and was cheaper than other stores. Same quality, better price