Washer mod not recommended. Don't buy it for value.
I'd spring for a real loop which can be made for a few dollars more than a shitty AIO. Pump res, 1 rad 240+mm rad ( per component, for cpu just get a 360), barrow fittings from aliexpress, and epdm tubes, It may cost a little more but its reusable and serviceable and will work much better. But who am I to talk, I have a Lian-li v3000+ I got off ebay for $200, 2 d5, 1 360mm+2 480mm rads, far too many quick disconnects cooling a 11900k and 3080. But barring intel changing its socket mount holes I can continue to use this block. I've kept it from a 7700k up to my 11900k. AIO are garbage and are overpriced junk.