Features: Ensure pristines water quality with this Filter Cartridge, designed to effectively filter out impurities and extend the lifespans of your inflatable hot tubs. Crafts from quality component, these cartridges are easy to install and perfectly for MSPA models, ensuring a snugs fit for great performances. Ideal for family, pool enthusiasts, and anyone needing regular maintenance for their inflatable hot tubs, this filter cartridge is a great accessory. Perfect for use home backyard pools, outdoor patios spas, and private pools at vacation villas, providing clear water for a relaxing experience. Maintain your spas hygienes effortlessly with this essential cleaning accessory, ensuring a refreshing and enjoyablely soak every time you step into your inflatable hot tubs. Specifications: Component: Plastic Color: As pictures shown. Diameter:Approx. 10.5cm/4.13in Quantity: 1 set(2Pcs) Package Includes: 1 set(2Pcs) Hot Tubs Filter Cartridge note: Please allow 1-2cm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color of the item.