The Trojan 650645 filter system accepts the following UV lamp replacements:
The Trojan UV Max G - Ultraviolet Water Disinfection is an ultraviolet filter system that reduces Cryptosporidium and Giardia, bacteria, and viruses in your drinking water. This Trojan UV filter system is highly effective due to its 100 watt amalgam UV lamp, which offers nearly twice the output of other lamps and lasts for two years. The Trojan UVMAX G water purification system offers Easy Quarter-Twist Assembly, power supply operation indicator, sensor reading output, and an audible alarm mute button.
Trojan UV Max G - Ultraviolet Water Disinfection specifications: