The hose assembly you’ll have to order. Moen might send it all to you.
The cartridges are held into the valve body by an internal plastic cartridge nut. Moen makes a special tool to remove the cartridge nuts. They’re recessed deep in the valve body. You’ll have to remove the red/blue handle adapters first.
Then reach in with needle nose pliers and yank the cartridge out.
You can use a 3” deck screw to screw into the old cartridge then yank it out with pliers. That’s another way.
I’ll post a link to the cartridges and the tool.
