*Product May Be Subject To Extended Lead Times. The UltraZap 55W Professional UV Sterilizer is a top-tier sterilization unit built for large-scale applications such as commercial fish farms, koi ponds, and industrial water treatment systems. Utilizing advanced UV technology and a high-quality quartz sleeve, it ensures effective disinfection by targeting bacteria, viruses, and algae. This sterilizer is a must-have for maintaining pristine water conditions in high-capacity aquatic environments.