Replacement bottle cap for the magnetic-mechanical bottle mounting system. All bottles and their corresponding caps age over time – even twist bottles are not immune to this. If the old bottle is still in good condition but the cap has become worn, chewed, or leaky, simply replace it with the valve bottle cap.

Replacement bottle cap with high flow, self-closing, and leak-proof valve, as well as optional dirt protection.

• Only suitable for Twist bottles 800, 590, and 450.
• Not suitable for other Twist bottles marked "Made in Taiwan.".