Waterway Cartridge Crystal Water [131 sq ft OEM] [Qty 4 Required] (817-0131) unicel A trim kit like this

A trim kit like this is often one of the simplest ways to make the spa feel fresher without rebuilding the entire jet assembly

Helps restore dependable internal electrical function

and avoidable repeat service calls

Praher SM-10-A0S replacement multiport valve

Waterway Cartridge Crystal Water [131 sq ft OEM] [Qty 4 Required] (817-0131) unicel A trim kit like thisThe Waterway Cartridge Crystal Water [131 sq ft OEM] [Qty 4 Required] is an OEM Waterway Crystal Water cartridge element used in compatible cartridge filter systems. This 131 square foot filter cartridge helps capture debris and support cleaner water flow through the filtration system. This listing notes that four cartridges are required for the applicable filter setup, making it important to confirm the full filter model and quantity needed before