These are used as bleacher, washer and thickener covers and are essential filter cloths. They are also used on the brown stock washing drums and on the drums of bleaching plant. They are available in stainless steel (AISI 316,316L, 317, 317L), in all polyester open-ended shrinkable variety with SS clipper seam, as all kynar woven shrinkable covers, as combination of kynar and SS woven shrinkable covers and synthetic spiral loop seam .All these design are woven in plain weave. However certain grades of polyester and kynar for Pulp Mill are woven in 4shaft double layer design also. All Stainless steel are woven in plain weave design. Wire mesh and diameter are selected based upon the end use. These covers can also be used for other places of filtration like secondary fiber recovery etc.