They are NAPA brand. The 1A number HFMC1A and the 3A is HFMC3A.
If you go the the NAPA online site you can download the flyer. They have several chargers on sale. The flyer says the sale is for the month of September. If this link works it will take you to the chargers.
https://www.napaonline.com/en/flyers?ref=homeTopBanner
edit: you will have to select a store for the flyer to download.