*** use Option (1) to select Option ***
Forespar Marelon Flowtech free-flow sea valves incorporate the valve body, thru-hull and the choice of all 3 sizes of hose pipe connections all in one set. These high performance racing valve are available for 3/4", 1” and 1-1/2” hose size. The Flowtech valve pipe can be faired smooth to the boat’s outer skin so that when the valve is closed, the internal plunger and valve pipe creates a flush, fair and fast outer surface.
Mark 2 valve features a long and wider threaded base than Mark 1.