Hydropool replacement X18-PHY Filters used in the Serenity hot tubs from 2022-2022. Serenity hot tubs require 2 of these filters to complete the filtering system. These filters have replaced the Serenity New Wave filters that where collapsing. Some of these models require the sleeve adaptors Hydropool P/N 5005045.
- Outside Diameter: 6" ( 152 mm )
- Height: 9-1/2" ( 242 mm )
- Top: Closed with Handle
- Bottom: 3-1/4" ( 82 mm )
Replaces Pleatco X18-PHY25, Hydropool 4520036