Shane: Hi, I'm Shane with etrailer.com. Today I'm going to walk with you how to install the 13,500 NTU Atwood air conditioner on our 2018 Keystone Cougar fifth wheel trailer. Maybe you have an air conditioner, and it's just not working efficiently enough anymore or maybe you're replacing one that's not working. Maybe you're doing what our customer did here in replacing a vent with an… see more >