Description Snap In Blank Knockout Seal Snap in style knockout seals are inserted in discontinued, open box knockouts to protect exposed wires. They are used in standard, air tight or dust tight applications. Primus Cables' snap in knockouts seal, close and secure open knockout holes without removing box devices or covers. Features Features Snap-in installation allows for quick and tool-free insertion into open knockout holes. Seals and protects exposed wires within electrical boxes by closing discontinued knockouts. Versatile application suitable for use in standard, air tight, and dust tight environments. Eliminates the need to remove existing box devices or covers during installation. Available in multiple trade sizes including 1/2", 3/4", 1", 1-1/4", 1-1/2", and 2" to fit various knockout openings. Constructed from durable materials such as plated steel or non-metallic options, ensuring longevity and reliability. Enhances safety by preventing access to live wires and reducing potential shock hazards, especially in non-metallic boxes. Ideal for both commercial and residential use where maintaining box integrity and protecting wiring is essential. Specifications Part Number Trade Size Dim A Dim B NPNB-SNAP-50 1/2" 1.070 .310 NPNB-SNAP-75 3/4" 1.235 .310 NPNB-SNAP-100 1" 1.480 .310 NPNB-SNAP-125 1-1/4" 1.800 .310 NPNB-SNAP-150 1-1/2" 2.215 .360 NPNB-SNAP-200 2" 2.675 .360 What's In The Box What's In The Box Qty 1 - Snap In Blank Knockout Seal