Desen tehnic: www.halkeyroberts.com/userfiles/files/Inflation%20Drawings/Boat%20Valves/C690NSBVXX%20REV_H.pdf
Halkey Roberts newer style inflatable boat valve #690NSBV fits older AB, Caribe and current Mercury and Walker Bay inflatables or any boat that has a Halkey Roberts valve. The center pin is surrounded by 8 grooves. The older valve is surrounded by 6 grooves. See related products below for the older style valve.
**To ensure proper fit, check the number located on the top ring of the valve you are replacing**
Deflate the boat. While holding the back of the existing valve, use the wrench to twist the internal part of the valve out, being careful not to let go of the back of the valve as it may fall into the boat. Twist the new valve in using the wrench. The housing on the new valve is unnecessary for this application and can be stored or thrown out.