Hi there! You are currently browsing Agline as a guest. Please login to your account to access pricing and online ordering. Don't hesitate to contact our friendly team if you experience any issues. Home / Fish - Aquarium & Pond / Filters / Pet Worx – Bio Sponge Filter Pet Worx – Bio Sponge FilterLogin to view prices SKU description PriceStockQuantity PWAP70 Pet Worx – Bio Sponge Filter - Mini Login to view prices PWAP72 Pet Worx – Bio Sponge Filter - Medium XY-2811 Login to view prices PWAP73 Pet Worx – Bio Sponge Filter - Large XY-2813 Login to view prices PWAP80 Pet Worx – Bio Sponge Filter - Extra Large XY-2837 Login to view prices Add to regular order list.