The Fig 4, Fig 5 and Fig 6 are yellow metal screwed strainers. The Fig 4 and Fig 6 are angle type and the Fig 5 is a straight type strainer. The standard stainless steel screen for all types is 0.8 mm perforations. As options, other perforations and mesh sizes are available as well as monel screens. The strainer cap can be drilled and tapped for blowdown and drain valves if required.