1. Size: 20mm, 25mm, 32mm, 40mm, 50mm, 63mm 2.Thread size: 1/2", 3/4", 1", 1-1/4", 1-1/2", 2" 3. Color: white, gray, green, blue 4. Ppr material is from China Sinopec. Brass material code:CuZn39Pb3 or CW617N 5. Thread standard: ISO, G, M, R, NPT, ANSI, ATM.