1Strong Compatibility: Filter cartridge holder is designed specifically for Lay Z V1 S1, perfectly adapted to ensure product stability and reliability. 2Efficient Filtration: This adapter is equipped with a filtration sponge tube column, which can efficiently filter impurities and pollutants in the water of the filter tank. 3Durable PVC Material: Filter cartridge holder is made of PVC materials. It has strong durability and can be used for a long time. 4Simple Installation Steps: Replacement hot tub parts filter cartridge holdert is easy to install and use without any tools. 5Convenient Cleaning and Maintenance: It can reduce maintenance workload and provide you with a more convenient user experience.