Hands down ZW is the best filter for the money. Some complain they don't last long, but they need their water pre-filtered either with a softener or whole house filter before ZW can do its job. We use our filtered water for our pet's health and ours, and all cooking and everything tastes so much better. Our filters lasts for at least 45-60 days. Been using ZW for years and our health and pets is excellent.
Verified purchase: Yes | Condition: New
Our water is directly from the Silurian Aquifer via a 500’ well. Its TDS is 250-275. I follow the recommendation and change the filter when the tester reads 006. The first pitcher of water from my “new” filters read 006 (coincidence?) It held at 006 for about four fills then steadily rose to >050. I replaced that filter with another from this order and the first reading from that filter was 008. I can imagine a few scenarios that would explain this, but I won’t be using the remaining filters and will hope that Sam’s Club once again offers a 4-Pack for $34.98.
Verified purchase: Yes | Condition: New
I replace these water filters every 10-12 weeks based on my current water consumption level. They make a huge difference in water quality! Using their TDS meter water tester, I find the filtering level even lower than name brand water bottles! You can definitely taste the difference. Once these water filter goes bad and needs to be replaced, your water will start to smell (you'll know when it starts smelling slightly fishy).
Verified purchase: Yes | Condition: New
Great filtration, Top cover doesn't fit very well. Filters last us about 3 or 4 months.
Verified purchase: Yes | Condition: Pre-owned
Arrived ready to go use water tank wirks great
Verified purchase: Yes | Condition: New
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