Hello Sir, We professional manufacture many types of capillary tubing, including 3/8" x 0.049" duplex 2205, 1/4" x 0.035" 316L, 1/2" x 0.065" alloy 825, 1/8" alloy 625, etc... If you have any needs, please feel free to contact me, we will offer the best price for you. Kind Regards.