Ron, every oil filter I have purchased from FastLane or PartsShop have come complete with all the washers and O-rings you'll need (plus some other pieces for alternate aplications).
'73 280SEL 4.5 (9/72)- RIP
Only 8,173 units built from 5/71 thru 11/72
'02 CLK320 Cabriolet - wifey's mid-life crisis
2012 VW Jetta Sportwagon TDI...at least its a diesel
Non illegitemae carborundum.