The Fluval A1430 is the correct replacement foam filter media for the following filters:
The Fluval 103 Aquarium Foam Filter Media - 2-pack is a two pack of replacement foam filter media for Fluval 103 filters. This aquarium foam filter is designed for freshwater and marine environments, and provides mechanical filtration by removing particulate matter. This replacement aquarium filter also assists the growth of nitrifying and beneficial bacteria in your tank.
Fluval 103 Aquarium Foam Filter Media - 2-pack specifications: