From The COR: AMC Grapefruit at Costco

In Important Alerts, Newsletter Items by kosherqu

The COR points out that AMC brand Grapefruit, sold at Costco in 8 pound bags, are a product of Israel, as stated on the tag and require taking of Terumos and Maasros.  There have also been reports that Clementines sold at Costco in some areas are a product of Israel as well.