The Polaris UV-washer is the correct replacement washer for the following filter systems:
The Polaris UV-Washer - Polaris Replacement Washer is a UV replacement washer for all models of Polaris ultraviolet water filtration systems. The Polaris UV washer features a white finish and O-ring shape. This Polaris washer features durable construction and is for use with the sleeve and nut.
Polaris UV-Washer - Polaris Replacement Washer specifications: