RAYOVAC Hearing Aid Battery: 312 Battery Size, Zinc Air, 185 mAh Capacity, 1.4V DC, 16 PK - 5AHD1|312-16 - Grainger
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Energizer - Pack of (8), Size 312, Zinc Air, Hearing Aid Batteries - 69443158 - MSC Industrial Supply
Duracell DA312-B8 (8PK) Size 312 170mAh 1.45V Zinc Air EasyTab Brown Hearing Aid Batteries (DA312B8) - 8 Piece Retail Card
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