Product review (1 stars): I'm not a hard customer to please...just don't want crappy products!!!
Ordered these, and can't be more unhappy. First cartridge lasted 5 weeks before the water started tasting funky and off. Installed the second, this one lasted just under a month, and I don't have well water... don't have hard water. There's just no excuse or explanation. Not like I've gone through 500+ gallons of water in less than a month, which these are manufacture rated for 750 gallons! I usually always purchase these from Wal-mart, but decided to go this route as I would get them faster. Normally, they last 6 months or longer in my household.
It's almost like these were previously used and/or refurbished! DO NOT recommend anyone buy these and waste nearly 80 bucks!