Posted 6/13/2009 10:45 (#743633 - in reply to #743223) Subject: Re: Replacing 3010 hydraulic outlet o-rings
The quad ring has a near square cross section. But more like four little o rings with a filer. Makes it have two high spots each of four faces instead of just one of the round o-ring. But they have less contact area so probably won't wear so well.