OMB Rebuild Kit
 

Anyone know who else is selling an OMB rebuild kit other than Pineaapple? Specifically looking for Viton rings.

If you know the size(s) of the viton O-rings used, you can probably source all of them from McMaster-Carr.

I could but the problem is you end up with way more than you need since you can't buy just one. Typically someone has done just that and has leftovers for sale.