Quartz Sleeve for Trojan UV - G36-18347 UV Light Bulb Coating:None The dichoric reflector is necessary

The dichoric reflector is necessary in compatible fixtures that help in scattering heat

orgWatts Hydro-Safe HSUV-SS-12 Water Treatment Germicidal UV Light Bulb

It protects the lamp as a physical barrier from contaminants such as dirt and debris

Ultravation - UVS-2000 UV Light Bulb is 18 watts and 100% compatible with germicidal OEM Air sterilization filters

Quartz Sleeve for Trojan UV - G36-18347 UV Light Bulb Coating:None The dichoric reflector is necessaryClear Fused, fire polished quartz sleeve: 20mm x 22. 5mm x 830mm Open Ended CureUV's Trojan UV G36 18347 Replacement UVC quartz sleeve has a total length of 830mm and is compatible with the germicidal OEM water disinfection filters, sanitizers, and UV water purifier model 17491. Specifications: Inside Diameter: 20 mm Outside Diameter: 22. 5 mm Length: 830 mm End Types: Open Both Ends *All germicidal UVC products listed are compatible brand UV