MAPP Gas Soft Solder 1/2 in to 2-1/2 in; MAPP Gas Silver Braze 3/8 in to 7/8 in; Propane Gas Silver Braze 1/4 in to 3/4 in; Propane Gas Soft Solder 3/4 in to 2-1/2 in; Silver Braze Tube Cap and with MAPP Gas 1/4 in to 1 in; Soft Solder Tube Cap and with MA