The handle part of Phoenix Faucets Teacup-Style Handle Replacement Set # PF287045, when taken off of the base, does indeed have the hexagonal hole that yours has. Take a look at the picture I have included where you can sort of see the opening but also the part that handle fits over which is a hexagon. view full answer...
I'm not sure what air conditioner you have but one like the Furrion Chill HE RV Air Conditioner System - Single Zone - 15,000 Btu - Black # FR23PV, an acceptable slant is 15 degrees, as you can see by the cut out of the instructions. What you can do is use a shim to try and get the AC level. view full answer...