In most cases, water heater anode rods are universal. The only exceptions are :
Buderus : They use another type of threading to install the magnesium anode.
Bradford White : Some model have the anode is built into the hot water outlet.
All other water heater brands use a regular magnesium anode with 3/4 ” NPT threads.
Corro-Protec anodes are designed to fit any hot water tank on the market. You can see all models on the following link : Residential and Commercial Water Heater Anode.