The Baier Quick Acting Watertight hatches have positive latch verification.

If the handle is down the hatch is locked.

This marine hatch is available with a Built in T-handle turnbar that open and Close with only a quarter turn. This flush deck hatch has the all parts needed for operation contained in the hatch and still remains flush to the deck. This is our only hatch design that offers positive lock verification that prevents the hatch from being left unlocked. They are standard equipment on fish boats, tugs, barges, work boats, and other marine vessels and many US Navy and US Coast Guard vessels.