The Lifegard Aquatics Pro Max UV Sterilizer Quartz Sleeve Internal Locking Assembly is an upgrade to ALL 3" and 5" Lifegard Aquatics Pro Max UV Sterilizers. This assembly will allow the end user to have the ability to change the Lifegard Aquatics Pro Max UV Quartz Sleeve without draining the water. Lifegard Aquatics Part # R450230.

NOTE: Beginning in 2022 the Quartz Sleeve Internal Locking Assembly has come with the Pro Max UV Sterilizers. This is an upgrade only for older units.