Pentair Pentek CBC-BB Big Blue Carbon Water Filter, Whole House Heavy Duty Carbon Block Replacement Cartridge with Bonded Powdered Activated Carbon (PAC) Filter, 10" x 4.5", 0.5 Micron, White

Fits well works well. But with all carbon block filters don't forget to put a silver dime down the center before installation. Silver is a natural antibacterial substance. And after the water goes through the filter and the chlorine is removed it's always nice to have the silver there. But that's just my opinion.

Good filters at a decent price.

Filters well

Made in China. Not certified by NSF, only “independently certified”

Works great on our Rockwood Pop Up A Frame Camper sink filter system

We purchased this undersink cartridge at least twice, but the one we installed on 1-20-25 is already totally clogged! Within 2 months! 20,000 gallons? We don't even use this water for drinking, cooking (have a well for that). So there is no way we have ran anywhere close to 20,000 gallons through it. MOF, we haven't used 20K in total , including 2 showers, commodes, hot water, outside water hoses, dishwasher, clothes washer. Naturally, no recourse with the seller.......... UPDATE!! Amazon made it good! That's why Amazon is the best... Thank you.

I love these filters. I have a three stage setup in my RV. I use a 5 micron then a 1 micron and then this carbon block. The water tastes great or actually it doesn't taste like mud or whatever local nasty stuff is in the water. The water doesn't taste like like a high end battled water because they add salts for flavor. This thing removes almost all flavor. Its just plain clean water. I do get a pressure drop after all three filters but this carbon filter preforms better than any others I've tried. My shower isnt getting tons of water deposit anymore. I filled two bowls with water one filtered from my three stage and one unfiltered, covered them with paper towel and let them evaporate. The filtered bowl still had deposits but it was small and minimal, more like a film of dust at the bottom. The unfiltered had yellow/tan crystals that formed in the bottom. It looked like beach sand. If you wanted to try this but fast just boil 1/2 a cup of water in a pan until its all gone. Just make sure to watch it and dont let your pan burn!Some cites have deep wells where they get the water but its not always clean and sometimes doesn't pass regulations. Every once in a while when I change my filters I have chunks of nasty stuck to my first stage filter. sometimes it looks like metal and other times it looks like ectoplasmic residue from ghost busters. I could never drink city/well water. Some day I hope to setup a Reverse Osmosis so I can have clean water from almost any source. I love the water in Colorado but even that has salmon spawn in it :)After about 3-4 months I have to change my filters because they are clogged. My first two stages are heavy as rocks.

Leak proof design and solid material.I use this as a prefilter for my Cuzn UC 200 potable water filter system. Under sink and standard holder and never had a problem with quality of the product.I have used these for more than 2 years .... I replace them every 6 months.