3 Pack AP431 Cartridge, Replacement for Aqua-Pure Whole House Scale Inhibition Inline Water System Helps Prevent Scale AP430SS - IT'S PURE EXPERT

My originally installed cartridge was the 3M that came with the unit I had installed. My furnace man recommended the Aqua Pure as the replacement. It spun into the fitting without any issues. I change the cartridge every 6 months as recommended. I noticed a difference especially with my hot water in no loss of pressure to do scale build up in my domestic hot water coil in my furnace like I had been seeing for years previous. Overall - good product. Good price. I recommend.

I bought these due to the price and I have an alarm set up on my phone to change these on my calendar when the time comes. I've done one change and it was quick and easy. I feel like these are the way to go and not break the bank.

Easy ordering and perfect fit. Very satisfied.

Worjed

These are the exact fit for what I needed at a fair price - will order again

Went on in a minute. Does the job. Good price.

Recently installed a new hot water system. The plumber has the same system in his home and told me I could likely get 30 years from the storage tank by using these to remove the crap that comes with town water. Great price and easy screw - in replacement. Get them and protect your investment!

I use them for my 5th wheel RV. I feel better about the water supply at camp ground water when I use this filter.