A catheter tip is disclosed comprising a tip electrode (301) comprising a ledge feature (320), and a center cavity (308) and a manifold assembly (319) comprising a fluid lumen manifold (311) and a stop tube (310). The stop tube can be coupled to the fluid lumen manifold and configured to abut the ledge feature such that a distal end of the fluid lumen manifold extends a pre-determined distance into the center cavity of the tip electrode. The fluid lumen manifold can comprise a plurality of sideholes which can be sized and configured to distribute an irrigant to the tip electrode. The catheter tip can comprise a flexible tip electrode.