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Maintain the sterilization power of your Kind Water UV disinfection system with this high-quality quartz sleeve (KIND-Q420) and UV lamp (KIND-L420C) replacement. Specially designed to work seamlessly with Kind Water’s whole-house UV systems, this lamp provides the UV-C light needed to sterilize harmful microorganisms such as bacteria and viruses.
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We recommend replacing your UV lamp/sleeve every 12 months or as necessary.
UV lamps gradually lose intensity, reducing their ability to disinfect water effectively, even if they still appear to be working. Replacing the lamp and quartz sleeve annually ensures maximum UV performance and consistently safe, clean water.
Powerful protection against invisible threats such as bacteria, viruses and other pathogens
Changing the UV lamp and quartz sleeve is quick and easy. Simply follow our step-by-step instructions. Most replacements are completed in minutes, with no technician required.
Maintenance Instructions
Quick and easy lamp/sleeve replacement instructions
UV Lamp & Quartz Sleeve Replacement Instructions
Maintenance Video
Detailed video on how to replace your UV lamp/sleeve
Overall rating: 4.7727275 / 5 from 22 reviews.
Review topics: ["shipping","customer service","staff","system","water"].
"I LOVE my Kind Water System! I bought it last year, and it works perfectly. No more salt to carry!!! I installed the system on the wall, and the plumber installed the water pipes. I just replaced the UV Lamp/Sleeve, and it was easy. For me, Kind Water System was worth the investment. I HIGHLY recommend Kind Water System."
"Our system has been in for about a month now, and we couldn’t be happier with the results. Clean tasting water. Showers are great. 5stars all around !"
"I have had the Evo/Kind Water System for almost 3 years and they have never let me down . . . my filters etc come in a timely manner automatically every year . . . excellent product !!! The water from my tap is superior to any bottled water out there including Fiji which WAS my fav."
"Works well so far"
"Took 5 minutes to switch my lamp and sleeve. I thought it would be intimidating my the videos helped and it was so easy. You can see the dirty lamps and sleeves and definitely need to be replaced every year for maximum protection."
"Easy to install"
"Kind customer service is very good to work with! Very professional and knowledgeable of your products. Willingness to help you with any questions or problems you may encounter. I received my annual replacement filters and IR bulb in Feb2026 as was normally scheduled. I installed the new filters and IR lamp as I have in the past. The system came back up without any issues. The lamp Controller optimized the IR bulb and everything working as designed. A little over 1 week later, I noticed the controller/power supply beeping constantly- checked it and lamp failure was on the display screen. Could not see any light through the pex white water piping as i I normally do. I went through some personal troubleshooting unplugging unit and the card. Checked connections, bulb, card, etc… Plugged the card and lamp back in and powered back up controller. Immediately went to lamp failure. I unplugged the unit and called Kind- put through to Customer Service . The service rep stepped me through a few checks and steps and still the same fault! He immediate sent me out a new lamp while he continued to troubleshoot the problem remotely. Unfortunately the new lamp he sent me also failed immediately. He isolated the problem to a bad lamp power supply internal to controller. He then sent me a new controller and I installed it! Bingo back in business! Your customer service is awesome! Thank you for the assistance !"
"Lightning fast shipping!"
"The whole system has failed me expectations, including the verse osmosis tank, which never worked. The softener spit beads all throughout plumbing lines, and had to be massively overhauled. I’ve sent numerous emails with no response to kind Water."
"Works great. Good customer service too."
