National Association of Corrosion Engineer (NACE) standard MR-01-75 (1980) Withstands harsh, corrosive environments Removes water vapour and impurities from the air supply Ideal for off-shore applications food, chemical and petroleum process plants Units can be joined together using barrel nipple connectors (stock no. 186-0229) Operating temperature +49°C maximum Viton seals and Acetal retainer