Swapped the mouse/bug entrance for this sealed unit. Had to make a plate since the hole for the old round one was bigger than the new square one. Happy with the outcome. I'm glad it came with the female plug to put on the 30 amp cord after we cut it since the three prong plug is not the same as what is found in campgrounds (here anyway). Time will tell if the plastic holds up both in terms of fading and structure. So far it seems decent.