Spiral screens / fabrics A high-tech product with easy closure and many spiral sizes and permeabilities; for a multitude of machinery applications. Rotex spiral spiral fabric, large loops 1600 to 2900 g/m² Read more … Rotherm spiral F spiral fabric, flat monofilament 1200 to 2700 g/m² Read more … Rotherm spiral spiral fabric, round monofilament 1300 to 3600 g/m² Read more …