What is the other for? There are 3 o rings. The big orange one on the top, a skinny larger black one under that, and the 2 on the cooling units. I don't want to order expensive o rings from TM if I can avoid it. I can't imagine needed more of the skinny black one than the cooling unit o ring. NowhatImeanVern?Meaning six of both sizes.
Thank you, that did help. I should get them from TM.I’ve bought replacement cooling unit orings on eBay twice, both with mixed results. Keep in mind there are variances with the stock stems as well as with the orings themselves (hey, they’re cheap and made overseas). Some orings fit and some don’t - a bit of luck of the draw in a bag of 100 (both tries). As for the large oring holding the stem in place I haven’t ordered extras. I have a couple of extras thrown in with my TM purchase in May ‘20. Hope this helps.