The Hydrotech 36003033 is the correct replacement quartz sleeve for the following water filtration systems:
The Pura #10 Quartz Sleeve Replacement for UV-1 Series is a replacement quart sleeve for the Pura UV-1 water filtration system. This UV quartz sleeve thermally protects your UV-1 bulb against damage or water contact and ensures proper water purification. When replacing your UV-1 filters be sure to clean and inspect the #10 quartz sleeve, and replace when damaged.
Pura #10 Quartz Sleeve Replacement for UV-1 Series specifications: