Product Description
Outside pipe is 8 3/4" which fits over about an 8 1/2" pipe on the furnace. The inside pipe is 5 5/8" which fits over about a 5 3/8" pipe on the furnace.
It is 17.5" tall. Be sure your old crown is removable. Installation instructions are included.
Note: This assembly can be used on the above roof jacks and on roof jacks found on models MG1E, M1, MBHA, MGBA, MGBB, MGHA, MGHB, MMBA, MMBB, MMHA, MMHB, MSBA, MSBB, MSHA and MSHB.