The 0.8 mm ID inlet seal is used for all single-capillary column installations—whether the column is 0.25 mm, 0.32 mm, or 0.53 mm ID. The 1.2 mm ID inlet seal is used for a dual-column installation with 0.25 mm and 0.32 mm column IDs. A 1⁄16’’ ID opening inlet seal is used for the installation of two 0.53 mm ID columns or a micropacked column.
Note: Most single-column installation fittings (i.e., nuts) do not work with dual-column installations or dual-hole ferrules. For these applications, a kit such as cat.# 27185 or 20645 may be needed (e.g., with Agilent injection ports) in addition to a different inlet seal.

