Specifications: The foam filter is made of high-quality foam and is durable and practical for use. This filter is washable and reusable. It is suitable for hot tubs, spa pools, and similar applications. Clean with warm soapy water. Item Name: Hot Tub Filter Material: Foam Quantity: 1 Piece Compatibility: VI S1 Features: Reusable, Washable, Easy to Use Outer Diameter: 10.4 cm (Approx.) Inner Diameter: 5.2 cm (Approx.) Height: 8 cm (Approx.) Notes: Avoid over-chlorination, as it may cause the foam to degrade. Remove the filter during chlorine shock treatments. Discoloration of the filter is normal. Check the filter daily for debris and rinse under running water when needed. With proper care, the filter can last for several weeks. Due to lighting and screen setting differences, the actual color may vary slightly from the images. Slight variations in dimensions may occur due to manual measurement. Package Includes: 1 x Hot Tub Filter