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Hubbell TayMac 0.5-in Gray Metal Electrical Box Knockout Plug
Item # 330685 Model # CP47550S
- Includes two 1/2 in closure plug which is 1.03 in diameter and .29 in thick and two 3/4 in closure plug which is .85 in diameter and .34 in thick
- Used to seal off unused outlets on weatherproof boxes and covers.