SeaKing Stores › 40A AGU fuses - pack of 4 - RFFU40 40A AGU fuses - pack of 4 - RFFU40 £9.00 40A AGU fuses - pack of 4 - RFFU40. One sale unit is one pack of four. Add To Cart Added! 40A AGU fuses - pack of 4 - RFFU40. One sale unit is one pack of four.