zSTRA strainer is an essential element of any properly designed installation. It guarantees the proper functioning of its most sensitive nodes. In a particularly recommended version with a magnetic insert, products capture the ferromagnetic particles found in the medium. This is required for trouble-free operation of the installation based on bellow valves and where other, more technically advanced devices work. Linearly welded filter cartridges of various mesh sizes guarantee long-lasting and trouble-free operation.