7-20-4 WK Series In 2018 the 7-20-4 WK Series was unveiled for national distribution at the IPCPR Trade Show in Las Vegas. The name WK is a tribute to Kurt's son, William who passed away in 2011. It features an Ecuador Connecticut wrapper over non-disclosed binder and fillers. It's an immensely flavorful Connecticut that boasts notes of butter, nuts, sunflower seeds and cedar.