12in Electropolished Feedthrough Collar (6 CF Ports)

The FCO‑1200‑6‑EP is a precision feedthrough collar designed for 12″ vacuum bell jars and baseplates. It features six 2.75″ OD CF ports, an electropolished 14″ base flange, and is built from durable 304 stainless steel. It includes a standard FKM O-ring and mates seamlessly with Nor‑Cal’s dovetail-grooved baseplates and bell jars. Rated for vacuum service down to ~1×10⁻⁸ mbar and temperature extremes of −20 °C to 200 °C, this collar delivers reliable performance in demanding lab and R&D applications.