The most important in any compressed air filter is the element KSI ECOCLEAN® filter elements yield the following advantages: End caps of polymer material - No "afflorescence" and therefore no formation and accumulation of bacteria - No damage to the screw thread in the filter head - Filter remains undamaged even without greasing Larger filter area with up to 8-fold winding - Depth filtration instead of surface filtration increases the available filter area Advantages:: - Differential Pressure increases less rapidly - Greater efficiency of the element due to improved absorption Drainage layer of needle felt - Does not swell as air or gas streams through, therefore no cracking - Needle felt does not contain any silicon - Can withstand temperatures up to 120 °C Spirax stainless steel cylinders - Internal and external supporting cylinders of stainless steel - Up to 40% lower pressure difference due to the special form and arrangement of the open surfaces - More stable than conventional perforated plates and expanded metal, therefore more reliable operation and longer duty periods