[3:2 1080p] 3d Pipes Screensaver 10 hours (no loop, with teapots!)
Also check out this playlist, featuring my 2015 pipes screensaver video and all its sequels:
• [select your aspect ratio] 3D Pipes Screen...
If none of the videos on that playlist fill your screen, feel free to comment and ask for your screen's aspect ratio. Other ones coming up are 64:27 (approximately 21:9, for ultrawide monitors) and 2:1 (smartphones with rounded screen corners).
This video's resolution in 1620x1080 (not a typo)