General purpose silicone tubing with 3 mm inner diameter, 6 mm outer diameter. The tubing is used in Flow Injection Atomic Spectroscopy - Mass Spec (FIAS-MS) as well as the AS-900 Atomic Absorption Furnace Autosampler.
Check valves, which include a sealing washer, are easy to install using the optional Torque Wrench kit. For all PerkinElmer pumps an intermediate check valve is required. The input check valve, which is identical, should be ordered.