All the filters you need for both sides of your Dual Zone Swim Spa. Buy the bundle and save!

(4) X268560,

(2) X268566,

(2) X268532 

This filter set is perfect for 2025 or later Master Spa swim spas such as the: H2X Trainer Series Trainer 21, Trainer 21D, and H2X Challenger Series Challenger 21D.