The Pura 89511 is a quartz replacement sleeve designed for the following UV water filtration systems:
The PURA 89511 Replacement Quartz Sleeve UVSS-10 & 10M provides thermal protection for the UV lamp of your UV system. This Pura quartz sleeve also protects the lamp from potential damage. It is recommended to inspect and clean your UV quartz sleeve each time you change your UV system filters, as well as annually when replacing the UV lamp. Replace your UVSS-10 quartz sleeve if it is damaged or cannot be cleaned by non-abrasive methods.
The Pura 89511 specifications: