Gerber Replacement Valves are designed to fit Gerber Fun Grips Spill-Proof Cups. Since damaged or worn valves can limit the performance of your spill-proof cup, it is recommended that the valves be replaced as necessary. Two valves per package.
Customer Rating: Summary: Replacement Valves 2008-01-14 Comment: The replacement valves are just that...replacement valves. I haven't had to replace many to date...but I had to replace one shortly after purchasing the cups. I've learned how to wash them without breaking them...you have to be gentle with the little clear like plastic in the hole of the valve...if you're not careful you'll break it.
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