Based on this product's specifications, here are some alternatives and similar models
Fiber welding electrode AI-9/E, No name, MPN AI-9/E
Summary description:
Replacement electrode designed for fiber optic fusion splicers, model AI-9/E (MPN AI-9/E). Intended as the consumable part that performs the electric arc or heating required during fiber fusion processes. Suitable for use in compatible fusion splicing units where this electrode specification is supported; used in fiber preparation and splicing workflows in telecommunications, network installations and field repairs.