Description
🐟【Perfect Compatibility】 After many tests and experiences. We have optimized the filter cartridges in terms of size, filtration effect and ease of use. Our filter cartridges are perfectly compatible with Marineland Penguin PRO Power Filters 275/375 & Original Penguin Power Filters 200/350, Aqua-Tech 20-40 & 30-60 Power Filters，Choose our filter cartridges to make your aquarium healthier 🐟【Thick Cotton&More Carbon】This aquarium filter cartridge replacement cotton is made of thickened biochemical,
