Volant PRIMO PRO GARD 7 FILTER (8 LAYERS) # 5152.

VOLANT PRIMO FILTERS: Volant is introducing a new line of red filters to distinguish them from our original blue filters. The new line of Primo Diesel filters we are developing have been designed to provide better flow while being more efficient under extreme conditions. Volant Diesel filters have been tested through an ISO 5011 certified facility and have been proven to be one of the best filters on the market