Bite Valve Sheath
$5.00
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If you chew on your bite valve a lot but do not want to replace the whole mouthpiece, the replacement bite valve sheaths are a perfect solution. This 2-pack durable silicone sheath fits on second generation lunchbox mouthpieces.
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$4
$5
(+$1)
$5
$3.75
(-$1.25)
$3.75
$5
(+$1.25)