The Hydrotech 36002016 is the correct replacement UV lamp for the following:
The Pura #10 UV Replacement Lamp for Addon-1/UV-1 is a replacement UV lamp for the Pura UV Addon-1 & UV-1 Series water filtration systems. This UV-1 water system replacement lamp is germicidal and ensures proper water purification. This UV water filter lamp has a 12 month life and ensures that your Addon-1 & UV-1 systems disinfect water efficiently.
Pura #10 UV Replacement Lamp for Addon-1/UV-1 specifications: