Generally
A radiator cap that gives very low pressure in the cooling system 7LB, it is under half the normal pressure. This is a perfect cover to mount if you e.g. have a half-baked cooler or heat pack, which you don't want to get too high pressure.
Of course, this is not a permanent solution, but can be perfect when you just want to drive a little more before the summer is over. When winter comes, you can fix the errors in peace and quiet. We have different brands of these lids, so the picture is therefore not always correct.