Joseph Phelps Vineyards has long been known worldwide for its Insignia label of wines. From their Napa Valley winery they make a signature blend of Cabernet Sauvignon, red Bordeaux varietals, a Pinot Noir and Chardonnay. The PFlow Series-F VRC assists with this process. It is in service throughout the year, during the peak harvest season, August through November it is in constant use for 12 to 14 hours a day.