Replacing your Pentek UV-120 or UVBB-120 Series Lamp every year is important to ensure consistent water quality. Though Pentek #20-463 compatible UV lamps rarely burn out, they will lose their ultraviolet effectiveness (disinfection power) over a 12 month period. 
The Pentek #20-463 UV Lamp is the heart of the UV-120 and UVBB-120 systems, when prefiltration is effectively maintained. It is also important to replace your quartz sleeve if damaged or if it cannot be cleaned by non-abrasive methods.

If it is time to replace your Quartz Sleeve:

• Use Quartz Sleeve for Pentek UV-120 with UV-120 system
  
• Use Quartz Sleeve for Pentek UVBB-120 with UVBB-120 system
  
• Replace  UV Lamp once a year
  

Compatible with:

• Pentek UV-120-1 (163007)
  
• Pentek UV-120-2 (163008)
  
• Pentek UVBB-120-1 (163009)
  
• Pentek UVBB-120-2 (163010)