CureUV Brand Guaranteed Replacement for Ushio - G30T8 Germicidal UV Light Bulb ATS4-739 or you can combine several

or you can combine several units to create a chain of sanitizers for use over a long extended surface

125-3640 or 125-3645 or 125-3650 or 125-3655

This germicidal bulb has a 4 pin base and is the 100% compatible replacement found in UV water sanitizers and purifiers

orgPort Star PW1 Water Treatment Germicidal UV Light Bulb

Programmable start timer with auto shutter open and close feature

CureUV Brand Guaranteed Replacement for Ushio - G30T8 Germicidal UV Light Bulb ATS4-739 or you can combine severalGuaranteed Replacement Ultraviolet (UV) Bulb 35 Inch Length Lamp Worry Free Performance for 1 Year The Ushio G30T8 Germicidal UV Light Bulb has a lamp length of 35 inch and gives you a worry free performance for an entire year. The 30 watt UV bulb makes use of UV C light to kill and inactivate bacteria, molds, virus, protozoa and yeast present in water. The germicidal UV C bulb comes with two pin on a double end base that helps in purifying water air.