Allright, I just got my hyperframe today and I'm trying to install it with my Retro Valve. Instructions say to replace the "center on/off or-ring" with the Centerflag one. Which o-ring is this exactly? The one around the on/off assembly or the really small one up inside that seals around the on/off pin? The instructions provided don't really help and I may just end up calling Centerflag. Any help is appreciated. 
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