If I have multiple similar purchases on separate receipts(vanities), can I report all as one item under safe harbor, or does each receipt need to be its own item?

So I purchased 4 vanities, sink tops and legs on 3 separate receipts for my rental property. All total around 1900. Can I just make one safe harbor item called "vanities" for all of them? Or does the fact that they are on separate receipts mean I need to make a separate safe harbor item for all of them?

Also, if I add some bathroom vent fans from another receipt, the total would still be under the 2500 limit. So could I add the fans to the same item and just call it "bath accessories"?