RF-20 Water Filter Replacement for Circle, Sediment and Carbon Block, Under Sink Reverse Osmosis Filtration System, Lasts 6 Months

Very easy instructions, no leakage, good quality! Very easy to install. What I like it delivers the small battery for my faucet!

The order was fulfilled quickly and shipping was expedited. The container was packed properly with no damage. The canisters are easy to install and are working very well. It was time for them to be changed & the water is has a purer and better taste. Thank you!

Purchased and installed a Brondell Circle RO system in August 2022. We're still using the original cartridges, I purchased a replacement set just in case and they are still sealed in the box. Changing them every 6 months is (probably) a waste of money. First, buy yourself a TDS meter (not a referral link, plenty of others on Amazon but this is the one I got- https://www.amazon.com/gp/product/B07QLZ6DT5 ) and test your water from the faucet versus out of the reverse osmosis filter. Our water is normally around 60 ppm, from the Brondell it is about 6-7 ppm. After a year it is still 6-7 ppm TDS. At exactly 6 months and again at 12 months the "change filter" light on the faucet started blinking. I don't think it is based on water usage, it is on a timer. All I do is remove the battery, wait 30 seconds and reinstall. Your mileage may vary, obviously our faucet water is naturally pretty low on contaminants (only reason we got the RO is that 2 of those contaminants are arsenic and manganese so it's nice to reduce those to safer levels) so if your tap water has more stuff in it your filters may get clogged up faster. But if you have a TDS meter showing you the filter is doing its job AND your water flow is not slowing down changing the cartridges is unnecessary. Hope that helps someone concerned about the high cost of these oem filters.

This works great with our RO unit. Worth every penny. Much better than buying plastic water bottles which leach BPA into the water…

I like these filters and can clearly tell the difference after installing the new one. The only thing is that it works only for 5-6 months. maybe I need to change the whole RO system (not sure though since its not old) It's pricey as if you compare with the water you get from the stores vs the maintenance of RO + Filters. Installation is very easy but a little time consuming process overall because whole flush requires multiple time to start giving the fresh and clean water.

I love my Brondell reverse osmosis and they need the filters changed twice a year. The quality is outstanding and they take the nasty chemical taste away from my water. I wish they would lasted longer but that’s the way it works. Instructions are clear and the filters for like a glove. I also like that it comes with a replacement battery.

This is a good filtration system filters. I tested the water 3month ofter filter was due to change. The result came back excellent water quality

good

Its great. Its what I needed. Its filters for my water

Exactly as needed. Price was better than from manufacturer website

Fit well, and no leaks.

Easy

good quality