The Knecht OC78 oil filter is a high-quality spin-on filter designed for various Audi, Seat, Skoda, and Volkswagen models. This genuine Knecht filter provides reliable filtration, removing contaminants from engine oil to protect critical engine components and maintain optimal performance. Featuring a bypass valve opening pressure of 2.5 bar and an anti-drain back valve, it ensures consistent oil supply and prevents dry starts. With a height of 123 mm and an outer diameter of 76 mm, it is a direct replacement for OEM part numbers like 078115561J and 078115561D.