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Your cart is empty.The NuvoH2O Water Heater Replacement Cartridge is engineered to protect your water heater from the damaging effects of hard water scale. Designed for use with the NuvoH2O Water Heater System, this salt-free cartridge helps prevent the formation of new scale while working to reduce and remove existing buildup—restoring your water heater's performance and efficiency. Its integrated, compact design features a quick-connect cartridge replacement system, making maintenance simple and mess-free. Unlike traditional systems that rely on salt or electricity, the NuvoH2O Water Heater Cartridge uses a proprietary citrus-based formula to bind with hard minerals, preventing them from sticking to surfaces and causing damage. With over 25 years of commercial water treatment expertise built into every cartridge, you can trust NuvoH2O to deliver powerful, eco-friendly water softening for one of your home’s most important appliances.
Steve J
Reviewed in the United States on March 10, 2025
Perfect fit and good quality
Ken
Reviewed in Canada on January 22, 2025
Proper replacement for the cartridge of our Nuovo water heater filter system. I followed the instructions for installation available on U-tube. After turning off water supply, press the red button at the top of the old cartridge, and then important to lift the red lever on the carrier plate to allow rotation and removal of the old cartridge.
Austin D
Reviewed in the United States on May 8, 2024
Bought this after installing my Takagi tankless 199,000 btu water heater. It’s marketed as being the “must have” filter to remove and reduce scale in your tap before water enters your tankless. Also states this filter helps prolong the life of your tankless water heater. It’s a giant lie in my opinion.This filter was used for approximately 14 months in a house of 4 people: three bathrooms, kitchen, etc. side note- I do have a whole house sediment water filter as well.After replacing with a brand new filter I decided to cut this thing open to see what all it had “filtered.” Needless to say I was disappointed on what I found. I had assumed it would be what you normally see in a water filter, thick media type material to capture anything running thru my pipes. NOPE! It’s essentially a sock inside the filter. Even more irritating is that after I cut it open I noticed the filter wasn’t even attached to the water inlet nipple. Hard to see in photo, but there was also some kind of mildew/mold stuck inside the filter.For as expensive this filter is I was hoping to see some significant filter media, in addition, I hoped to see a lot of debris/scale that had been caught over the last 14 months. I did not see any kind of scale build up at all. Nada. NOTHING.In my opinion do not buy this. Stick with your typical whole house sediment filter and you’ll be just fine.
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