This O-ring is designed to ensure a sealed and stable closure between the quartz sleeve and the other components in the Aquacare UV system. It prevents leaks, protects against moisture ingress, and contributes to safe and efficient operation of the system. The O-ring is produced in a durable material and tolerates prolonged exposure to water and temperature changes. Key benefits: Specifically fitted to the quartz sleeve in Aquacare UV systems. Provides a watertight and secure seal. Resistant to pressure and temperature. Easy to replace during service or maintenance. Please contact us if you are unsure whether this O-ring suits your system.