Quartz Sleeve for Sunlight - LP4535 UV Light Bulb for Germicidal Water Treatment M-UV-8 The SI1 UV sensor is

The SI1 UV sensor is a durable and precise tool designed for use with the HI1 handheld unit

Aqua Ultraviolet G8T5 Generic UV Light Bulb is 8 watts and 100% compatible with Aqua UV germicidal OEM Water sterilization filters

Drawing of Replacement UVC Bulb Item # 192645 (PDF)

Simple as that

Quartz Sleeve for Sunlight - LP4535 UV Light Bulb for Germicidal Water Treatment M-UV-8 The SI1 UV sensor isReplacement Quartz Sleeve for Sunlight LP4535 UV Light Bulb for Germicidal Water Treatment The Replacement Quartz Sleeve for Sunlight LP4535 UV Light Bulb for Germicidal Water Treatment is an open ended, high quality quartz sleeve. CureUVs quartz sleeve works well with water sterilization filters, UV sanitizers and purifiers. The quartz sleeves from CureUV are available in various diameters, thickness and length. CureUV uses the best industry