19mm Boston Valve

Best used as a replacement Boston Valve for the Tahe Beach and Bic brand Inflatable and folding kayaks and stand-up paddle boards. Also known as the Kalyma Boston Valve. This is a larger size Boston valve, that might be more common in main chambers, and less likely to be found in the inflatable seats. The bottom of the 19mm Boston Valve fits into a threaded hole about 7/8 of an inch. 

Can be used as a replacement Boston Valve for the Bic Kalyma inflatable kayak or the Bic Yakka folding kayak (formally part number 31738). The function of the Ring (shown to the left) is unknown to us and likely to be discarded by some users.

This Bic Valve may fit other brands of inflatable kayaks.