PowerTech! offers several different types of hubs, including conventional press-in rubber, square bore (Flo-Torq style) and Cushion-Lok.
Their Cushion-Lok hubs have been used for almost two decades. Different models get different hubs.
You may already have a Cushion-Lok hub. If so, there will be a “CL” in the part number etched into the prop.