The reducing cross also is called unequal pipe cross , it is the pipe cross which the four branch ends are not in the same diameters. We are manufacturer of Reducing cross and supply high quality Reducing cross in both large and small quantities worldwide & offer you the best prices in the market. ASME B16.9 Butt weld Reducing Cross Dimensions Nominal Diameter Outside Diameter Center to End D1 D2 DN NPS Series A Series B Series A Series B C M 15×15 1/2×1/2 21.3 18 21.3 18 25 25 15×10 1/2×3/8 21.3 18 17.3 14 25 25 15×8 1/2×1/4 21.3 18 13.7 10 25 25 20×20 3/4×3/4 26.9 25 26.9 25 29 29