4x 30Amp Main Harness Relays 12V for Seadoo GTX 155 RXP RXT 230 255 260 300 215

With the black color, the relay blends in well, which can make the whole panel look more cohesive.

If you prefer a low profile look, the black color should make it easy to integrate without clashing.

I noticed the black housing looks clean on the rack and doesn't catch light in distracting ways.

The black color gives it a neutral presence that doesn't fight with your wire colors or labels.