-Proven reliability -Superior strength construction -Element is easily cleaned or replaced at oil changes -Easily installed in 2 hours or less -Teflon hoses and all mounting hardware included in kit -STC'd FAA-PMA approved design -AOA discounts available -No hassle Warranty -Kit includes: 2 Filter assemblies, 2 Teflon hoses, All attaching hardware, STC document, 337 forms, and installation instructions