You will find that the heavy duty switch relay is simple to wire and starts working immediately.
Federal HEATER COIL ELEMENT Type F Trip F3.15A 3.15A F coil
The MICTUNING brand is easy to see, and that helps when you are labeling a harness later.
the Magnecraft RoHS brand is on the relay, and I like knowing it comes from a familiar name in the space.
A nice touch is the DIANN logo stamped on the side, a small detail that adds some confidence.