Pneufit D food-grade pneumatic fittings may be used for a range of compressed air applications and are approved by FDA, WRAS (UK) and NSF-51 (USA) for use in food processing. The integral stainless steel grab rings offer fast, secure assembly for Nylon PU and PE tubing and the range consists of over 45 different shapes. Tube sizes are available from 4 to 12 mm and 5⁄32 to 1⁄2 in. Pneufit D can also be specified with NPTF, BSP and UN type threads.