Can you use fusion cartridges in a Mach 3 razor?

No, you cannot use Fusion cartridges in a Mach 3 razor, as they are designed for different razor systems. Mach 3 razors use a specific type of cartridge that does not fit the Fusion system. Each razor line has its own unique cartridge design, so compatibility between them is not possible. Always use the cartridges specified for your razor model for optimal performance.