A Witches Hat Strainer, also called a temporary cone or Startup Strainer, features a cone-shaped or witch's hat design. Its broad surface area and tapered form make it highly effective in catching particles while minimizing pressure drop. Frequently constructed from stainless steel or corrosion-resistant alloys, these strainers are both durable https://www.yubofilter.com/news/witches-hat-oilfield-strainer.html