The first official Vapor recovery Unit shipped out Friday, February 28 from Vilter's factory. Looking forward to many more sales and shipments. Just in North America alone it is estimated that 12,000 new tanks a year are coming online. The typical well pad has 4-8 tanks. Easy math, 12,000 tanks / divided by 4-8 tanks = 1,500 -3,000 VRU’s a year. That is just for new well sites. There have been roughly 20,000 tanks added since 2011.