I have a Deublin on my Red Steel Eagle 24" surface cleaner and I have not done anything to that swivel in over 6 years, it is like the Energizer bunny, keeps going and going and going.
I just installed the Talon 2 swivel on that surface cleaner in the past few weeks and it is doing good, no problems and the spray bar is spinning fast.
I have heard from someone else that the Talon 2 swivel is not holding up under constant every nite workloads for long hours.
I have not put it to that kind of test so not sure about long term lifespan yet.
Just got word from the great people over at Pressure Washer Products that Whisper Wash came out with a better swivel than what they had, it is called "The Next Generation" swivel and I was told that it is a very good swivel.
I am looking into building a custom surface cleaner and if I do, I might give that new swivel a try and see how it holds up.
The 2 Whisper Wash swivels that Rex at Pressure Washer Products rebuilt for me before the Tampa Round Table last year are still holding up great using those new-high-tech bearings that he uses, he did a great job on those swivels. I was having them rebuilt about every 3 or 4 months but it has been over a year and couple months so far and everything is great!