Mighty Max Battery 6V 12AH F2 for Yuasa MP10, NPX-50, NP12-6 Rechargeable Sealed Lead Acid 6120 Backup Power Batteries in the Device Replacement Batteries department at Lowes.com
YUASA - NP SERIES | VxI Power
Amazon.com: 6V 12AH F2 SLA Replacement Battery for Yuasa MP10, NPX-50, NP12- 6 : Health & Household