DetailsKanthal Grade A1 Clapton Wire 26/32 5m Wire Spool for rebuildable tanks and drippers. Use this kanthal clapton wire to rebuild your RTAs and RDAs. Clapton wire is known for producing very good flavor. The inner core wire is 26 AWG Kanthal Grade A1 and the 32 AWG Kanthal Grade A1 is wrapped around it. This is a 5 meters (15 feet) clapton wire spool.