Product Information Material: 316 Stainless Steel Select a Product Part NumberNominal SizeDN SizeTube OD 14A-R050DIN151/2" 14A-R075DIN203/4" 14A-R125DIN321-1/4" 14A-R375DIN103/8" 14A-R250DIN2-1/2" 14A-R300DIN3" 14A-R100DIN1" 14A-R400DIN4" 14A-R150DIN1-1/2" 14A-R200DIN2"