Sold in packs of 4. The Freemie Valves serve as extra or replacement valves for use with our original open system Freemie Collection Cups.
For best Freemie Cup performance plan to replace valves every 2-3 months as needed.
IMPORTANT: These valves ONLY work with original Freemie Cups. DO NOT use with Next Gen Freemie Cups that have a tongue-shaped barrier inside. See cup parts picture below before ordering.