UV 24W (watt) 2G11 base hot cathode germicidal UV bulb (UV-C), low-pressure mercury arc lamp.  Effective for eliminating microorganisms such as virus, bacteria, mold and yeast in the air and impurities in water.  In the water, clarifiers cause algae to clump for easy removal by pond filter.  Bulb MOL (length) 12", bulb life 8000 hours, pin pattern: straight line.  For best performance and longer life, keep bulb clean, do not fingerprint.  Manufacturer: Purely Products.  Manufacturer 1-year warranty. 

Replacement cross-reference: Purely PUVG1124; Alpine PLGU24; Commodity Axis - Terminator 24 watt UV; Green Killing Machine - 24 watt UVC; OASE - Bitron 24C UVC Clarifiers