Rayovac Extra Advanced ZM Batteries, size 312 (10 cards of 6 batt)
Members Mark Hearing Aid Batteries, Size 312 (40 ct.) - Sam's Club
Power One Hearing Aid Batteries - Size 10 Pack of 60 – HearingDirect
PowerOne Evolution Hearing Aid Batteries - Zinc Air Hearing Aid Batteries with Improved Battery Life - 60 Batteries - Size 10, 13, 312 & 675 - with Liberty Hearing Aid Battery Keychain | LIBERTY Health Supply
Kirkland Hearing Aid Battery Size 10 13 312 or 675 Zinc-Air Premium Batteries | eBay
Hearing Aid Batteries - Longmont Hearing & Tinnitus Center
Power One Zinc Air Hearing Aid Batteries - Size 312 (Brown) | Advanced Affordable Hearing