Guardian Probe for SPS3/SPS4/AIMS, with 0.75mm ID Probe Connecting Line (Red). Compatible with Aim Lab & Agilent SPS3/SPS4 Autosamplers. The unique, robust tip design eliminates crushed & damaged tips due to misalignment. Drip-resistance prevents cross contamination of samples during probe movement, especially with oils. Built-in particle filtering holds back particulates from blocking the line. Completely inert design, all PEEK & PTFE construction, the Guardian autosampler probe provides exceptional resistance to strong acids & solvents. The Guardian probe has an ID of 1mm, with other interchangeable UniFit sample capillaries available in IDs of 0.3mm Black 70-803-1853, 0.5mm Blue 70-803-1852, & 1mm Green 70-803-1721.Replacement probe 70-803-2008. Replacement Red 0.75mm ID Probe Connecting Line 70-803-1714. Replacement Mount Nut, 70-803-1776. Guardian Probe for Teledyne Cetac autosamplers, see 70-803-1803.Glass Expansion is ISO 9001:2015 certified by AB Certification, No. AU4501-900