Marine by Codelocks heavy-duty mechanical locks with a mortice latch, full-size lever handles, and a code-free option (CL515MG).The Marine by Codelocks range features a selection of locks that have been specially enhanced to withstand harsh outdoor environments and coastal applications. Reliable and durable, the marine-grade black finish has proven to be resistant to moisture and salt spray, following rigorous salt spray testing for up to 1000 hours*.Medium duty tubular mortice latch with ‘anti-shim’ plunger. Latch retracts by turning the inside handle freely, or the outside handle after code input.Key Features:Salt spray tested 1000 hours*Durable marine-grade black finishSpecially enhanced finish for harsh environmentsLarge full-size lever handles with return to doorBall shape knob availableCode Free access optionSuitable for internal and external useTumbler alignment for easy code changeLarge three coil lever return spring suitable for high traffic useNeoprene seals included2,047 non-sequential code combinations are availableMaterial: Zinc AlloyOrientation: VerticalCL515MG model offers Code Free option