VI filter cartridge: Height: 80mm, outer diameter: 104mm, inner diameter: 51mm. Suitable hot tubs The high-quality filter element can filter excess dust and dirt, optimize pump performance and extend the life of the equipment. The filter element is mounted in the filter pump and filters dirt as it passes through the system, helping to remove dirt and bacteria and providing you with clean, fresh water. 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 confirm the size before purchasing.