Submarine Products Ltd were a diving gear manufacturer with a factory in Hexham in Northumberland in England. They have closed down. They were important in making scuba sets readily available to the public in England.
Until the 1950's in Britain Siebe Gorman kept aqualungs expensive, and many British sport divers had to use home-made breathing sets and ex-armed forces or ex-industry rebreathers, and some became expert at home-making diving demand regulators from industrial parts such as Calor gas regulators. Finally Submarine Products Ltd in Hexham in Northumberland in England designed round the Cousteau-Gagnan patent and made sport diving breathing sets accessibly cheap.
