Regular sizes:

4″×57/8″,41/2″×61/8″,5″×63/4″,5″×81/2″,51/2″×81/2″,7″×81/2″,7″×91/2″,75/8″×91/2″, 85/8″×105/8″,95/8″×121/4″,103/4″×143/4″, 133/8″×171/4″,133/8″×171/2″,16″×20″, 185/8″×26″,20″×26″,etc.
We can supply various single bow-spring casing centralizers according to the different request of casings and wellbores for users.