Used on the following models:
Life Fitness
Horizontal Calf Pro Series II - PSHCSE
Pro 2 Series - PSBESE - Platinum (After SN PSBE000287)
PSBESE Pro 2 Back Extension (S/N PSBESE001723 & below)
PSBESE Pro 2 Back Extension (S/N PSBESE001724 & up)
PSCP Pro 2 Series Chest Press
PSRW Pro 2 Series Seated Row
PSTESE Pro Series Triceps Extension