Trangia replacement Burner Cap Washers (Rubber Seals). Genuine Trangia spares! A pack of two rubber burner sealing rings. Your burner cap seals will eventually need replacing; rubber & methylated spirits isnt the best mix & solvent tend to damage rubber but it is possibly one the best way to get a tight leak-proof seal on the burner unit. Its a catch 22 situation, however, emptying your meths burner before storing will help to prolong the life of the seal. Trangia have over 80 years of experience in making their stoves & for the last 50 years or more they have been the choice storm-proof stove for outdoor goers. Thats because this kit has been tried, tested & trusted for generations; the Trangia Factory is basically on the on the doorstep of the Scandinavian wilderness so its pretty safe to say that they know what they are doing. Why do people buy Trangia? Its because they are that simple they cant really go wrong. There are almost no moving parts that can break; you may need to replace the burner cap seal every few years & buy a new pan handle because you have misplaced it, but thats about it.