Kit Includes:
combustion chamber, Kaowool board spacers and complete instructions
Fits Hydrotherm Models:
MO-770A, MO-1155A, MO-1540A, MO-1925A, MO-2310A, MO-2695A, MO-3080A, MO-3465A, MO-3850A, MO-4235A,MO-4620A, MO-5005A, MO-5390A, MO-5775A, MO-6160A, MO-6545A, MO-6390A