Makes me wonder now if there really is a 20 egg version. I don't see an official one on their company site. Amazon sells it, but they also have vendors that are perpetrating scams on customers with thousands of Chinese knockoffs. It's one reason I left that place years ago (and older my son works there in returns, hates the place; if you only knew the disgusting things they allow to be returned then resold, repeatedly, you'd be completely grossed out-certain products he told them he will not process so they need not send them down his line).
By the way, for the many who have a Hovabator Genesis 1588 and have no idea you can actually adjust the hygrometer in it, you can. Mine has always run 10% low according to calibrated analog reptile hygros. I didn't know this for years myself and I've used mine since I had to replace my original Hova due to our house fire in 2013. I just reset it yesterday, in fact. Maybe I'm just late to the party with this information and it's not a secret, but I see so many complaints about it. The temp seems to be holding well, but that hygro was always my main complaint. I can post how to do it, if anyone is interested. You do have to know what the humidity actually is in the bator by using a hygro you have calibrated first, though.