Product Information Material: 304 Stainless Steel Select a Product Part NumberNominal SizeDN SizeTube OD 13R-G050DIN151/2" 13R-G075DIN203/4" 13R-G125DIN321-1/4" 13R-G375DIN103/8" 13R-G100DIN1" 13R-G200DIN2" 13R-G300DIN3" 13R-G400DIN4" 13R-G150DIN1-1/2" 13R-G250DIN2-1/2"