On request, the Sievert set Deluxe is now also for sale in this variant: the small pointed head has been exchanged for an extra large burner head in this set. Because with the largest burner head it is more pleasant to have more distance to the handpiece, an extra long intermediate pipe has also been added. This set consists of: Handpiece 3486, swivel ready hose, pressure regulator, pipe 3511, head 3939, head 3941, extra long pipe 243509 and large head 2942, soldering pin titanium 24794 . This hose remains flexible so that it is pleasant to work with. No expiry date, but an average life of 5 years is recommended by the manufacturer. Also check with the insurer whether they have any other requirements. It is important to regularly check that the hose does not become cracked or wrinkled.