Janet, I doubt your guava from Guava King (ebay) is the same source as the one from Trianhthy but the fruit looks similar.
Good news that his guava is very good tasting and large. I also purchased a few different varieties from Guava King a year or so ago. The trees that survived looked like the fruits were different for the box store (Home Depot, Lowes) plain varieties. One tree I got is his Crunchy Pink, supposed to be seedless, hope the fruit gets as big as yours.