Features: The replacement UV lamp perfectly Compatible with VIQUA VH410 system and VH410M, SC-410, SCM-410, SPV-410, SP410-HO, SPV-8, PUV-14 UV system. Easy to replace, even if you are alone, you can easily install it. 18, 000h lifespan, please replace the bulb regularly to achieve the best disinfection effect. Highly effective disinfection: decomposes microorganisms such as bacteria, viruses or parasites, and helps reduce chemicals that are harmful to health. Color: Transparent Size: 20.55 x 1.7 inches Package includes: 1 x UV Lamp 4 x O Rings Notes: Manual measurement, please allow slight errors on size. The color may exist a slight difference due to different screen displays. Do not look directly at the lamp when connecting the power supply.