reticulated foam cut to size

When your project needs airflow or water flow without sacrificing filtration, reticulated foam cut to size saves you time, waste and guesswork. Its fully open-cell structure lets air and liquid pass freely while trapping debris. Ordering it cut to your dimensions means it drops right into a filter housing, pond box or speaker cabinet.

Why Choose Reticulated Foam?

Standard upholstery foam has partially closed cells that block flow. Reticulated polyurethane foam is processed to open those cells, creating a skeletal, sponge-like network. That makes it a go-to for:

• Pond and aquarium filter foam
• HVAC and air intake filters
• Speaker grilles and acoustic panels
• Outdoor cushions that need to drain quickly

What to Look For

Pore Size

Foam is graded by pores per inch (PPI). Lower PPI means larger openings for coarse filtering and fast drainage. Higher PPI catches finer particles but restricts flow more.

Thickness and Fit

Measure your housing or frame carefully, and consider stacking coarse and fine layers for staged filtration.

Find Your Custom Cut Filter Foam

Ready to get started? Browse our open cell foam options below and choose the pore size and dimensions that fit your project.