Based on your request for a 1 liter rust remover, the Evapo Rust - Rust Remover - 1L for R129 would be an excellent option. Evapo Rust is a water-based rust remover that is safe, non-toxic and non-flammable. It works by converting rust into non-rusting iron particles that can then be washed away with water, leaving the restored metal protected from future rust. At only R129 for 1 liter, it provides great value for money to remove rust from metal surfaces like tools, automotive parts or machinery. Let me know if you need any other details!