Best place for seals , gaskets ?

Bit of an odd question but im after the "o" ring and seals that go on the oil filter housing on a 300 TDi Discovery.

Where would be the best place to get them quickly and easily ?

Ta

Try Paddocks.. they have a good web site www.paddockspares.com and I find them really helpful most of the time... I ordered a rear suspension bolt pack at 10am Friday it arrived at 9am this morning... not bad eh?

Had a look but its all a bit confusing as I dont know what its called :doh:

Found this picture on another site and its sorted one gasket part number but im still stumped on the other.

LR Centre Ltd - 300TDi Oil,Air,Fuel Filters with Associated Parts-Dis

Im going to change ERR3283 incase that is gone aswell but the main O ring and seal im after is between ERC5923 and ERR2241

Maybe it comes with one of those parts ?