Replacement lid for ION8 leak proof water bottles. The lid offers the same one-touch, one-handed operation, smooth flow, and leak-proof functionality with a safety lock. This replacement lid is a complete unit, including new fitted closure seals, spout, vent, and closure seals. It is compatible with ION8 Recyclon and Steel bottles in the small size (fitting 320ml-600ml bottles). This lid helps extend the life of your bottle, saving you money.