Review on Waterdrop Ultra Filtration Replacement 4000Gallons Capacity by Amber Ramos

I used this in a white 3 stage system under the sink instead of the CS filter that came with it. This UV filter cleans more. It is more expensive and lasts longer than a CS filter. The reminder lights on my system are turning off, but that's okay. I set up reminders with Alexa to tell me when to change all the filters in my house as there are so many. I hope this will be NSF certified soon. Also, I think Waterdrop should have some of these subscribe and save filters. What better reminder to change your filter than getting a new one in the mail?! Your customers, Waterdrop! This UV filter is PERFECT for TSC and TSU systems. I know I have a TSC system. IT WORKS GREAT!