Replacement for Dometic Duo-Therm 620315.321 on 1999 Chinook Concorse
Updated 02/17/2026 | Published 06/09/2024
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Question:
I need a replacement for a Duo-Therm620315-321 in a1999 Chinook Concorse. Thanks
asked by: Warren
0
Expert Reply:
Hi Warren; since you have a Dometic setup the Advent Air Replacement RV Air Conditioner for Dometic Setup # ACDOM135 will work as a replacement. This will be a plug and play installation. If you would like a 15,000 Btu unit we also have the # ACDOM150. If you need a heat strip, the Electric Heat Strip for Advent Air RV Air Conditioners # ACMHD is sold separately.
expert reply by:
Robin H
0
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Robin H.
2/17/2026
Hey Warren, how did the Advent Air replacement work out for your Chinook Concorse? Did the plug and play setup go smoothly? Your update could make it easier for others replacing their old Duo-Therm units.