Neo UV602855 Replacement UV Lamp is an original replacement UV bulb for use with Trojan Pro20, H, H Plus UV water disinfection systems. When you buy a Neo UV602855 UV Lamp you can be assured of the performance, safety, and warranty of your system.  
Features:

• The Neo UV602855 UV Lamp is the replacement for Trojan H, H Plus, and Pro20 systems
• 2 O-rings included with lamp
• Long-life coated for stability, longer life and increased efficiency with bulb life up to 18,000 hours
• Low pressure high output amalgam based lamp
• Environmentally friendly, with less than 10mg of mercury; 70% less than most other commercially available UV lamps