Auto box plug washers

[AUA23]

I hope I've put this in the right place....
I was going to change the fluid in my auto box today, but when I opened up the haynes manual it said that both the drain plug and level plug washers must be changed - I've heard of a few people re-using there's (heating them and letting them cool) but would prefer if I could to buy some new. Any ideas where to get them from? I had a look on Rimmers and wasn't sure if this http://www.rimmerbros.co.uk/Item--i-TEB100040 was suitable for both of the plugs?

[rich17865]

I just reused them, all is well.

If you are planning on changing them anyway, the drain plug is an aluminium washer and the level plug is a rubber o ring.

[AUA23]

That's brilliant thanks, I'll have a look on Rimmers now :}