The quartz sleeve surrounds the UV lamp inside your UltraZap sterilizer, keeping water out while the light does its work. Replacing a scratched or aged sleeve keeps UV light transmission at its best and protects the lamp — which matters especially in saltwater setups, where corrosion eats into older sleeves. It’s a routine replacement for any pond, aquarium or fish tank UV system that has lost clarity.

Good to know:
– Four sizes: 8W, 15W, 30W and 55W
– High light transmission, corrosion resistant
– A routine replacement to keep your UV system efficient
– For UltraZap UV sterilizers
– Match the sleeve to your unit’s wattage