One-piece reusable high pressure fitting. Stainless steel with polymer front cone, for pressures up to 25,000 psi. Use for LC-30AD connection to mixer, SIL-30A connection to mixer and column preheater, CTO-30 connection to column(s). Because of the short fitting body, this fitting should not be used to connect columns to the 15K or 18K valves. Use 220-91522-03.