Features:1. Premium Sponge Material – Made from high-quality sponge that is soft, flexible, and durable. It bends easily without losing shape and offers excellent rebound.2. Effective Filtration – Traps fine particles and debris to keep water cleaner. Helps extend the life of filter media and maintains strong water flow with less clogging.3. Reusable & Washable – Can be rinsed and reused multiple times. Each sponge typically lasts around 2 months, making it a practical and eco-friendly choice.4. Saves Time & Money – Unlike disposable filter paper that needs frequent replacement, these washable sponges reduce routine maintenance costs.5. Convenient Size – Measures 20 cm in length, 10 cm outer diameter, and 4 cm inner diameter. Compatible with Type A filter systems.Product Details:These reusable foam filter sponges support long-lasting filtration in compatible pool or aquarium filters. Crafted from resilient sponge material, they capture dirt and debris effectively while promoting steady water flow. Easy to clean and built for repeated use, they help reduce replacement frequency and maintenance expenses.Specifications:- Material: Sponge- Color: Blue- Dimensions: 20 cm (Length) x 10 cm (Outer Diameter) x 4 cm (Inner Diameter)- Package Includes: 15 x Filter Sponges- Note: Only the listed items are included. Actual color may vary slightly due to lighting and screen differences. Dimensions may have a tolerance of +/- 1–3 cm.