Protip: do NOT get the MC4s with the “protective” plastic flap over the clips. It seems like even when you cut that flap off, getting those to open up again is damn near impossible. I’ve had to tear several of them apart to get the clips to let go.
Those ones don’t look too bad. It can also help to put some shrinkwrap over the nut, those gaskets in there don’t keep out water very well. There shrinkwrap you get that has an adhesive in it that flows out the ends when you heat it, and that really seals it up well.
Protip: do NOT get the MC4s with the “protective” plastic flap over the clips. It seems like even when you cut that flap off, getting those to open up again is damn near impossible. I’ve had to tear several of them apart to get the clips to let go.
Those ones don’t look too bad. It can also help to put some shrinkwrap over the nut, those gaskets in there don’t keep out water very well. There shrinkwrap you get that has an adhesive in it that flows out the ends when you heat it, and that really seals it up well.