Call the store they always have someone walking around for on call products
Try to call the store. If the carry them the stock is depleting rapidly because of the lower price.
ESB III is correct. Best to go online and search site before going to brick and mortar store. Some items available online only or are no longer in Costco inventory.
The inventory of Costco stores changes rapidly because of the volume of sales each store does.
Don't know if it has the ink that you requested, but they do have ink for HP. Check either online or call the store.
Check their website
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