No. 4905 No. 4903 and No. 4905 (See differences in trigger construction.) Same as latches above, except non-key-locking. Has same individual options with same prefix numbers. Finish: Zinc-plated, Bright Polished Stainless Steel Other finish options available. Consult factory.Available Gaskets/Spacer No. 1-4901-25 Black EDPM Gasket .062" thick for square corner receptacle. No. 2-4901-25 Black Plastic Spacer .062" thick for square corner receptacle (for standard hole pattern). Trigger Construction: No. 4903 Has welded construction. For heavy duty. No. 4905 Has integral paddle handle and trigger. For lighter duty.