Products:Stainless steel lost wax casting screwed pipe fitting. Material:AISI(304,316), ASTMA351(CF8M,CF8) Threads:AISI, B1.20.1, BS21, DIN2999/259&BSP&BSPT, NPT Pressure:150PSI Temperature: -60 ~ 450 F Size: 1/8"-4" PRICE OF UNIONS F/F CONICAL (USD FOB) size Price:(ss304) 1/8" 0.87 1/4" 1.13 3/8" 1.18 1/2" 1.67 3/4" 2.41 1" 3.42 11/4" 5.03 11/2" 6.37 2" 8.75 21/2" 13.18 3" 15.52 4" 19.49 Price will be higher 10% if type 316