I agree, but Challenger salesman says that the Fast tanks are a PITA when it comes to rinse out during spraying because of their design. We have a nice little deal that they put in spray planes on our tender for cleaning out the cone, but they are spendy and it would take two of them in each tank I suppose to work right.

Hope you you can get the Agri-products ones this year yet if you need them. I'd bet Fast has been out since December or before.