Pentax 67: Four LR44 as replacement for 4LR44/PX28/A544/476A battery
Vinnic 4LR44 L1325 476A 6V High Voltage Alkaline Battery
DURACELL PX28ABPK , 28A, Alkaline, 6V Battery
Vinnic L1325, RFA-18, A28PX, 4LR44, A544, PX28A, 4G13 6V Alkaline Battery for Dog Collars and Barking Control Systems - GN Batteries & Electronics Inc.
4LR44 6 Volt Alkaline Battery (A544, PX28A)
4LR44 6V Battery, PX28A 476A A544 K28A L1325 Battery 6V Alkaline Batteries for Dog Training Collars Cameras : Amazon.ca: Health & Personal Care
Lot 4LR44 Batteries 6V 476A PX28A A544 4AG13 Battery for Dog Collar EBL Brand | eBay