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Arvis · 07-02-2019, 05:23 AM

Trekwood RV parts is where I got mine, paid $16.59 for them and the shipping was almost as much. I put two extra return ducts on our 2018 Keystone Montana 3811MS. This is not to hard, just be careful there were wires inside the duct on ours. I measured 32” from the side wall to center of new duct. I used my Roto Zip to cut the panel then knife to cut the the duct. I used a 1X4 to make the guide, I cut it to 2 1/4 X 9 3/4 then put two holes one on each end to hold it to the ceiling with screws. Then just cut around the guide.
The ducts really made a huge difference in the cooling of our fiver. I do not have pics at this time , sorry.

07-02-2019, 05:23 AM	#13
Arvis Established Member Join Date: Dec 2017 Location: Rusk Posts: 14 M.O.C. #20961	Trekwood RV parts is where I got mine, paid $16.59 for them and the shipping was almost as much. I put two extra return ducts on our 2018 Keystone Montana 3811MS. This is not to hard, just be careful there were wires inside the duct on ours. I measured 32” from the side wall to center of new duct. I used my Roto Zip to cut the panel then knife to cut the the duct. I used a 1X4 to make the guide, I cut it to 2 1/4 X 9 3/4 then put two holes one on each end to hold it to the ceiling with screws. Then just cut around the guide. The ducts really made a huge difference in the cooling of our fiver. I do not have pics at this time , sorry.