The CentraMax RT1 is designed for both reciprocation and rotation type applications, and is always pulled when installed over an internal anchor or limiting device. The CentraMax PT1 is designed for reciprocating well applications, and is always pulled when anchoring devices are installed in the windows of the centralizer’s end collars. Both the RT1 and PT1 designs are suitable for applications with minimal annular clearances, Antelope says.