What stands out about the 2Pcs size is that it doesn't crowd your workspace while still being easy to grip.
Idec Electromechanical Relay Plug-in 4PDT 3A 24VAC GT5Y-2SN1A200
With this unit, you will find that the TE brand is front and center, which looks clean.
A nice touch is the gentle click, and a Jsdan relay gives you clear feedback without loud mechanical shock.
The Omron brand resonates well, and that matters when reliability affects your design outcomes.
What stands out about this unbranded relay is that the pin layout is printed right on the top for quick reference.
You will find that the Potter & Brumfield unit fits standard sockets with a snug, reassuring click.
You will find that Tyco Electronics parts fit well and work consistently.