Yeah those. Though I'd recommend rotary compression fittings (https://www.frozencpu.com/products/1...l=g30c497s1358
), which will allow you to move the tubing while it's it connected to the fitting. This will offer more flexibility, as when you're screwing the G1/4" thread into a socket, the tubing obviously moves with it. Tubing is always curved, as tubing is stored on a roll when they cut the right length for you. So the tubing always bends in a specific direction. With a regular compression fitting it might end up bending in the wrong direction, where when you need to go in a different direction it might become more likely to kink. With rotary fittings, you can just rotate the fitting until the tubing points in the right direction. Definitely worth it to me.
As for the Aquacomputer setup, you can go two ways with this:
1. Have a standalone reservoir (which is what you selected) > connect to pump top with tubing (e.g. Aquacomputer ULTITOP) + D5 pump (e.g. Aquacomputer D5 PWM or Aquacomputer D5 NEXT).
2. Have a pump-mounted reservoir (https://modmymods.com/aquacomputer-a...ing-34047.html
) + reservoir pump top (https://modmymods.com/aquacomputer-a...top-41094.html
) + D5 pump (e.g. Aquacomputer D5 PWM or Aquacomputer D5 NEXT).
Most people use pump-mounted reservoirs as it's easier to install, but there might be situations where you want a standalone reservoir and have the pump somewhere else.
If you want a drain, you'll want to get some sort of splitter, like a T-splitter and a ball valve. Just make sure the flow into the loop is off of the straight part of the T-splitter, and the ball valve is connected to the part of the T that's perpendicular to the rest of the flow. I currently have it backwards in my own loop (will fix it soon) which restricts the flow quite a bit.