reticulated polyether foam

Reticulated polyether foam is the go-to choice when air and water need to move freely through your project. Unlike standard upholstery foam, its cell walls are removed during manufacturing, leaving a skeletal, fully open cell structure that breathes, drains and filters with ease.

Why Choose Reticulated Foam?

That open network gives this material a few clear advantages over closed or partially open foams:

• Fast drainage: water passes through instead of soaking in, making it a popular quick dry foam for outdoor seating.
• Airflow: ideal for filters, speaker grilles and HVAC or aquarium applications.
• Consistent texture: uniform cells make it easy to cut and shape.

What to Look For

Pores Per Inch

Reticulated filter foam is often graded by pores per inch (PPI). Lower numbers mean larger cells and more flow; higher numbers mean finer cells that capture smaller particles.

Thickness and Firmness

For outdoor cushion foam, pick a thickness that suits your seat and pair it with a breathable, water-resistant fabric. For filtration, match thickness to the space and flow you need.

Find the Right Foam for Your Project

Browse the open cell foam and polyether foam sheets below to choose the size and style that fits your next build.