Marine-Grade Diamond Cut Egg Crate Filter Grid 27"x16" rectangle because the Cascade Pond Pumps

because the Cascade Pond Pumps are easy to use

By following the recommended dosing

Suitable for all marine reef aquariums

To support your Fluval U1 internal power filter

Marine-Grade Diamond Cut Egg Crate Filter Grid 27"x16" rectangle because the Cascade Pond PumpsExperience superior filtration with these Diamond Cut Egg Crate Filter Grids. Designed for high efficiency aquatic applications, these filter grids provide optimal support and consistency in water quality management. Crafted from durable polypropylene, they are ideal for use in both freshwater and saltwater environments. Key Features: Dimensional flexibility: each grid measures approximately 27" x 16" (680mm x 400mm) and can be easily cut or connected