Zoll Aed G3 Replacement Defibrillator Pads White 168X168mmZoll Aed G3 Replacement Defibrillator Pads White 168X168mm Zoll AED G3 Replacement Defibrillator Pads Adult Powerheart G3 defibrillation pads are stored connected to the AED; a technology developed by Cardiac Science to expedite the rescue process and help ensure electrodes are Rescue Ready. Pads may be placed in either position on the chest to reduce confusion and save time during a rescue. These pads are compatible with all Powerheart G3 series AEDs