19.05mm = 3/4" (≈19mm)(Fit US DN17 5/8" Pipe)
22.23mm = 7/8" (you can choose ID 22mm)(Fit US DN20 3/4" Pipe)
25.4mm = 1"    (you can choose 25mm)
28.6mm =9/8"   (Fit US DN25 1" Pipe)
ID 35mm     (Fit US DN32 1-1/4" Pipe)
ID 42mm     (Fit US DN40 1-1/2" Pipe)
ID 54mm      (Fit US DN50 2" Pipe)
ID 67mm     (Fit US DN65 2.5" Pipe)
ID 80mm     (Fit US DN80 3" Pipe)
ID 105mm   (Fit US DN100 4" Pipe)

Material:99.9% Pure Copper 
Inner Diameter x Inner Diameter
Connection Way:Soldering
USE:Air conditioning refrigeration,central heating, plumbing hardware, hot and cold water supply, air can water heater, engineering machinery, refrigeration equipment, etc