Filter cartridge VI: height: 80 mm, outer diameter: 104 mm, inner diameter: 51mm. Suitable for Lay-Z-Spa series hot tubs The high-quality filter element can filter excess dust and debris, optimize pump performance and extend the life of the devices. The filter element is mounted in the filtration pump and collects dirt as it passes through the system, helps remove dirt and bacteria and provides you with clean, fresh water.< /p> Easy to install and the cartridges can be easily cleaned and reused thanks to their high quality material mix. It is recommended to replace the filter element every two weeks in summer to keep the water clean. Easy installation, no tools required. Compatible with Vegas, Monaco, Palm Springs, etc. Please check the size before purchasing. Note: The data is all manually measured, please allow 1-3cm error Due to differences in light and display, there may be some deviations. color differences, please refer to the actual item received.