Return air adapter, cooling module, use with 2430, 23" L x 13-1/2" H x 11-1/2" D x 14" duct diameter

Return air adapter, heating module, use with 4860, 17-1/2" H x 38" W x 20" duct diameter

Return air adapter, cooling module, use with 4860, 35" L x 11-1/2" H x 15" D x 20" duct diameter

Return air adapter, heating module, use with 3642, 17-1/2" H x 38" W x 18" duct diameter

Return air adapter, cooling module, use with 3642, 35" L x 13-1/2" H x 10" D x 18" duct diameter

Return air adapter, heating module, use with 2430, 17-1/2" H x 25" W x 14" duct diameter

Return air adapter, heating module, use with 1218, 17-1/2" H x 20" W x 12" duct diameter