Wingding, The 3rd mirror from the inside end comes off without breaking, if you use TLC. I used a blow dryer to heat the glue and gently pried it off with a knife (only the top edge of mine was glued). With the slide closed you can reach in behind the mirror. Don't try to take the 4th mirror back out, it is glued full length unlike the 3rd mirror which is glued only at the top. I did and broke it. $31.95 + $16 shipping to my dealer and then what ever it costs to ship it to me from WA to AR. Also put a couple of nylon ties on the 2 bottom lines to keep the fittings from dropping to the bottom of the slide. Don't ask how I know this. All you need is the Faucet all the fittings fit the Moen unit I installed.
I am so pleased with the quality of the Moen that I am headed to Lowes to get 2 bathroom sink faucets and a kitchen faucet to replace the leaky units installed on my coach.
What a big difference this makes constant water temp and better flow
Wayne & Kathy
05 Alpine 40FDQS #75330 Towing 24' car hauler, 2012 Spyder, 2003 Harley FatBoy