Rubber LPG Hose Recommended by BSM.In general terms and given reasonable favorable operating conditions,Safety and Flexible Hose Should last for up to 3 years normal service life.However, due to the wide range of factors which can adversely affect the integrity of hose, no specific life should be quoted and emphasis must always be made in the absolute necessity for the customer/owner/delivery person to make regular checks on the condition of hoses.