I went and did it today - my mod took a tumble and the glass on the Lemo 2 got smashed. Thankfully I had thought ahead and did have spare glass but in taking out the glass, the one of the silicon o rings tore. I had a couple of spare o rings that came with the original purchase but now I am down to 1 spare o ring and would like to get more. My go to supplier - i.e. fasttech - doesn't list them or anything that could be comparable. I don't have calipers but it seems the flat white silicon o rings on the Lemo 2 seem to be OD 20mm and ID 16mm. Could anyone check whether I am correct on that one and possibly suggest where I can get said o-rings. Kindly do no suggest suppliers in the US - the shipping would be more than a whole new Lemo would cost. Thanks