CRL S4178 Brass U.L. Listed Standard Door Viewer

The CRL Standard Door Viewer allows a 160 degree field view of the outside. All Viewers are made from solid brass housing with a plastic lens which will fit a 1-3/8″ to 2-1/8″ (34.9 to 54 mm) thick wood or metal door. UL Listed Viewers have glass lenses, while non-UL Listed Viewers have a plastic lens. Viewers are easy-to-install by drilling a 1/2″ (13 mm) diameter hole through door. One viewer per package.

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