HydrologicGreen Carbon Water Filter - Activated Carbon Block Whole House Water Filter Replacement Cartridge for RO Systems - 9.75" x 2.5" Inch

They weren't good but the rubber grommit at the bottom of it came off where it is. It's OKI just stuck it on and put it inside because the plastic on the RO sleeve pushes it up anyway. Other than that good product.

I've never had a problem with a Hydrologic filter - that's why I was dismayed to order one only to receive a knock off labeled "Green Block". Sold by: Isopure_Water. I looked at Isopure's Web site. They don't sell Hydrologic but they do sell the brand they sent me for 1/3 as much as I was charged. I complained, they refunded my money and didn't ask me to return the filter which is now in the trash. Pretty obvious what they are doing here. How many buyers haven't checked and installed one of these?

Where I lived a recently finish the water mains I had gotten the pre-filter and it worked great I also got a reusable pre-filter and it also works great but I needed a new Coco filter because the other one was slightly contaminated from the amount of sediment that was and my water because of the water main breaks so my Waters back to normal taste great I cook with it and Supply my pets with their water from it. Perfect

Great, great filter. I use this on my kitchen sink. Without it smells like there's pool water flowing from my faucet, with it's like drinking the freshest water on earth. After six months of use, the filter is still working great. I plan on replacing soon as we've come to expect the water to be top notch. Even the dogs drink filtered water now! It's the greatest. The bonus? Feeling good that it's made to be carbon neutral.

Great product good price

when I removed the shrink-wrap, the two ends just fell off. I'm sure they cannot make a good seal after the adhesive is detached. I thought Hydro-Logic was a good brand but these are trash.

I'm using this on a GE SmartWater RO system and could tell an improvement in taste after installing and flushing the system. Much cheaper than the name brand but from what I can tell, just as effective. Guess I would need to do a water purification test to be sure but I'm happy with the taste and so will probably not do that anytime soon.

In combination with the other two filters, the TDS in my tap water went from 320-350 ppm to 10-16 ppm. My orchids are very happy.

Does what it says