Splash-proof cover locking with neoprene gasket. Flush-mount. It may be used as hatch for lockers, fishing tanks, storeroom hatch and bulkhead hatch. 160° opening. It can be installed on any sports craft, boat design category A, B, C, and D, area II a, III, IV, watertightness degree 2.It can be installed on any sports craft, boat design category A, B, C, and D, area II a, III, IV, watertightness degree 2.