It was an RS240, from the MM. Originally I picked it up because the 60mm wouldn't fit with fans blowing out the case but I've since removed the brackets at the front of the case so the 60mm rad will sit further forward.
Ther 60mm rad is an XSPC, but I can't remember which model it is as I purchased it from a friend a couple of years ago.
Tried it last night with the Corsair fans blowing out & initially the temps seemed better, water idling around 25c but after 30 mins of running Prey temps weere back up to around 35c (GPU 45c CPU 58c) Room temp is around 22-24c BTW
My Varders fans arrive today though so am going to try them first. Just can't figure out why water is as warm as it is though, flow seems good, radiators, blocks etc were cleaned out before rebuilding the loop the other week.
Also going to change the rear 120mm intake to a 140mm fan which I have spare, just to bring a little more air into the case.
Update.
Varders fitted (2x120mm front & 2x 140mm roof all as exhaust) & no real change in temps. Gaming water still hits 38-39c with fans running around 50-60%
rear intake is a 140mm alpenfohn wing boost 2 running at 70% Any higher than these setting the fans become quite noisey & really at those speeds they should be providing adequate cooling.
Also reapplied thermal paste, but that was never an issue as CPU rarely exceeds 60c
Out of ideas & having spent over £100 on various fans in the past week I'm giving up & will just put up with it for now.