Sea Dog Stainless Steel 11'' Hatch Adjuster Additive In-Line Non-Return Check Valve -

In-Line Non-Return Check Valve - 1-1/2"

due to a virtual blow-out proof turbo venturi tube design

Provides an barrier on underwater metal surfaces

When the temp is on the rise

and you'll spot Dark Seas gear everywhere

Sea Dog Stainless Steel 11'' Hatch Adjuster Additive In-Line Non-Return Check Valve -Hatch Adjuster 11" Constructed of corrosion resistant formed 304 stainless steel with UV resistant injection molded nylon mounting pads and knob. These Hatch Adjusters feature a simple thumb screw knob to lock into position. Great for dock box lids, hatches, windshields, etc. WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to