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Amazon.com: Rayovac 312 Zinc Air Hearing Aid Batteries - 180mAh - 8 Piece Blister Pack, RAYOVAC-312-8 : Health & Household
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Amazon.com: HEARPRO Size 312 Long-Lasting Hearing Aid Batteries 60 Pack - Mercury-Free - Zinc Air Technology - Made in USA - Plus Keychain Battery Case : Health & Household
Rayovac Size 312 Hearing Aid Batteries (8-Pack) L312ZA-8ZM - Best Buy