O ring alternative that buy you beer

Just replaced the high pressure fuel filter on my BF225 and realised I didn't have a new O ring (16078-ZY3-000).
Typically I couldn't find any oem here in the UK and those from boats.net cost over $10 each, so I started looking for alternatives.
After some careful measuring I ordered a pack of 10 35 X 2mm nitrile rings which have arrived today.
Put one on and it works perfectly - total cost 7GBP delivered next day!

That's bought me a couple of beers!

Now all I need to do is find an alternative to the ridiculously expensive filter!

metal-chicken. Good info. Thanks for that.

For US purchasers, here is a link to the same thing: https://www.theoringstore.com/store/index.php?main_page=product_info&products_id=1914

17 cents each plus 6.99 shipping. I ordered 10.