Replacement lid for ION8 leak-proof water bottles. This lid offers the same one-touch, one-handed operation, smooth flow, and leak-proof design with a safety lock. It comes as a complete unit with new fitted closure seals, spout, vent, and closure seals. Compatible with ION8 Recyclon and Steel bottles in the small size (fits 320ml–600ml). This purchase helps extend the life of your bottle.