I'm not sure but it sucks. My other half ordered the kit just before Christmas. As a gift to me and to go with my Helix 7 G2 for year round use. When she ordered it, it said that it was in stock. But then she got the dreaded call that it was on backorder. It doesn't make much sense. Did their supplier go away or did they under estimate the popularity. I bought this unit for year round use and if I have to wait for the kit until the end of February that's most of the ice season. I hope they get there crap together and fill the orders.