Colour of hose : 

Blue and red 

Safety / Usage :

• Keep hoses clear of any falling metal, slag or sparks.
•  Never allow hoses to become coated with oil, grease or dirt. Such coatings could conceal damaged areas.
• Examine the hoses before attaching to torch handle
• If cuts, burns or damaged fittings are found, replace the hose.
• Completely replace hose if it contains multiple splices or when cracks or severe wear is noticed.