Guardian In-Line Sample Filter. Supplied with seals(ferrules) to suit both 1/16 inch (1.6mm) and 1.3mm OD sample tubing. The Guardian In-Line Sample Filter provides a simple and effective way to eliminate the risk of particulates getting trapped in your sample lines or nebulizer. This filter is easily inserted into the autosampler probe capillary to prevent nebulizer and capillary clogs. Any particle build-up is easily removed by backflushing using the Eluo Nebulizer Cleaner for Glass Concentric Nebulizers (P/N NC9462559, 70-ELUO), or the Eluo HF Nebulizer Cleaner for OpalMist or DuraMist (P/N 501907353, 70-ELUO-OPD), and Eluo Adaptor for In-Line Filter (P/N NC0801128, 70-803-1160). Additionally, the filter may be cleaned using an ultrasonic cleaner. Made from PEEK, the Guardian In-Line Sample Filter is reuseable, can last years, and is suitable for use with all of the most common ICP applications.Glass Expansion is ISO 9001:2015 certified by AB Certification, No. AU4501-9001