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Amazon.com: 2pk Duracell MN21 Alkaline 12V Battery A23 MN21 23AF 23AE V23GA GP23A L1028 : Electronics
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Amazon.com: 2pk Duracell MN21 Alkaline 12V Battery A23 MN21 23AF 23AE V23GA GP23A L1028 : Electronics
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Energizer Specialty A23 Alkaline 23a Security Batteries (2-Pack) in the Device Replacement Batteries department at Lowes.com
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