High temperature, high pressure, and corrosive environment calls for tough metals. Designed by Rock optics in Colorado, the furious filter employs heat treated 17-4 stainless, cobalt 6, and 304 stainless steel. In addition, we applied ceramiccoating on the body of the tube to further enhance its high temperature and anti-scratch performance. Completed filter sets were fabricated and shipped to Rock optics. A +/-0.02 mm tolerance were respected and achieved between the tube ID and internal filter cores and capsinserts