UV Dynamics Replacement UV Quartz Sleeve 400275 for Model UVD20.40
UV Dynamics Replacement UV Quartz Sleeve 400275 for Model UVD20.40
UVDynamics 400275 Quartz Sleeve. Precision-engineered for the UVDynamics UVD 20.40 (NSF/ANSI 55 Class A) system, this heavy-duty quartz sleeve shields the internal 400271 lamp from water exposure while allowing maximum UV-C light to penetrate and disinfect your water.

UV Dynamics Replacement UV Quartz Sleeve 400275 for Model UVD20.40
This is a Genuine UV Dynamics Quartz Sleeve. This Quartz Sleeve is for UV Dynamics Systems UVD20.40C. This sleeve.
- Certified Compatibility: Manufactured exclusively to fit the UVDynamics UVD 20.40 / UVD20.40C NSF Class A systems.
- Maximum Light Transmittance: Crafted from ultra-pure fused quartz to ensure zero interference with the germicidal 254nm UV wavelength.
- Thermal Protection: Insulates the UV lamp from cold water temperatures, helping the bulb maintain its optimal operating temperature for maximum UV output.
- Industrial Grade Seal: Engineered to withstand the high water pressure and flow demands of residential and commercial filtration systems.
- O-Ring Included: Packaged with a fresh, high-quality replacement rubber O-ring to guarantee a watertight seal and prevent leaks.
- Part Number: 400275
- Manufacturer: UVDynamics
- Length: Approximately 46 inches (matched perfectly to the 400271 lamp)
- Material: Fused Silica Quartz Glass
- Design: Open on both ends for easy pass-through installation and cleaning
Handle with extreme care. Always wear clean cotton gloves or use a soft cloth when removing or installing the quartz sleeve. Fingerprints and skin oils left on the glass will bake into the quartz under intense UV heat, blocking light and creating weak points. For minor mineral scaling, clean the sleeve using a mild acid solution (such as CLR, vinegar, or citric acid) before reassembling.

Real People. Real Support.
We’re a small team of water filtration specialists who care about doing things the right way.
Every product on our site has been chosen because it works, not because it’s trendy or pushed by a supplier.
If you ever need help, you’ll talk to someone who actually understands water systems and wants to make this easier for you.
Helpful Product Videos
Watch helpful videos about installation, maintenance, replacement, and product details.
FAQs
How do I cancel or edit an order?
How do I cancel or edit an order?
Unfortunately, we cannot cancel orders due to a change of mind. However, we understand that mistakes happen. If you need to edit your order information, such as the delivery address or contact number, please contact our customer service as soon as possible.
Here’s what you can do:
- Contact our customer service via email address, or Live Chat.
- Have your order number ready when contacting customer service.
- We cannot guarantee changes to orders after 24 hours of placement. This is because orders may be processed once received
How can I track my order?
How can I track my order?
You can track your order by checking the shipping confirmation email, which contains a tracking number and a link to the courier's website. Alternatively, log in to your account on our website, navigate to "My Orders," and click on the tracking link provided for your order.
What if there is a problem with my order?
What if there is a problem with my order?
If there is an issue with your order, please contact our customer service team as soon as possible. You can reach us via email, phone, or through the contact form on our website. Provide your order number and a brief description of the problem so we can assist you quickly.
I didn't receive all off my order?
I didn't receive all off my order?
If part of your order is missing, please check the shipping confirmation email to see if the items were sent separately. If all items should have arrived together or if you have concerns, contact our customer service team with your order number. We’ll investigate and resolve the issue promptly.

