A replacement air conditioner part needs to match the job at hand: an exhaust-duct connection and an air filter are not interchangeable. Between these two Comfort Aire parts, the clearest choice comes down to whether you need the connector that joins an air exhaust duct or a filter replacement.
Quick verdict
Pick the Comfort Aire Air Conditioner Part # 12120600003049 - Connector, Air Exhaust Duct when the required replacement is the air-exhaust-duct connector. Its description also identifies it as a round Midea unit adaptor, making it the purpose-built choice for that particular connection point.
Choose the Comfort Aire Air Conditioner Part # 12100204000202 - Filter when the needed replacement is a filter. The filter's higher listed price does not make it a substitute for the connector; it serves a separate part role. In short, match the part number and named component first, then use price as a secondary consideration.
At-a-glance comparison
| Part | Named replacement role | Condition | Listed price |
|---|---|---|---|
| Comfort Aire Part # 12120600003049 | Connector, air exhaust duct; round Midea unit adaptor | New | USD 8.93 |
| Comfort Aire Part # 12100204000202 | Filter | New | USD 12.61 |
The listed-price spread between the two parts is $3.68. That difference matters only after identifying which component your air conditioner requires.
Where each part wins
Comfort Aire Part # 12120600003049 wins for the exhaust connection
The connector is the focused choice for an air conditioner that needs the piece named Connector, Air Exhaust Duct. Its alternate part references include CMF12120600003049 and 12120600003049, while the description calls out its round adaptor form. That makes the part number especially useful when replacing a missing or damaged exhaust-duct connector rather than another component of the unit.
Comfort Aire Part # 12100204000202 wins for filter replacement
The filter takes the lead when the required component is explicitly a Filter. Its listed references include MDA12100204000202, CMF12100204000202, and 12100204000202. The description names a wide range of air conditioner models across Artic King, Comfort-Aire, Keystone, and Midea, reinforcing that this is a model-specific replacement-part decision rather than a general-purpose duct accessory choice.
Product notes
Comfort Aire Air Conditioner Part # 12120600003049 - Connector, Air Exhaust Duct
Choose this connector when your replacement need is at the air exhaust duct connection. The title gives a direct component match, and the description further identifies the piece as a round Midea unit adaptor. At USD 8.93, it is the lower-listed-price option in this comparison. The part also carries the 12120600003049 reference alongside CMF12120600003049, which helps distinguish it from similarly named air conditioner accessories. Its limitation is equally direct: this is a connector for the exhaust duct, not a filter. Shoppers replacing an air filter should move to the 12100204000202 part instead of selecting this adaptor-style connector.
Comfort Aire Air Conditioner Part # 12100204000202 - Filter
The right reason to select this part is simple: the replacement called for is a filter. The title names the component plainly, while the MDA12100204000202, CMF12100204000202, and 12100204000202 references provide additional ways to identify it. It is listed as new and priced at USD 12.61. The description associates the filter with named models from brands including Artic King, Comfort-Aire, Keystone, and Midea. Its practical limitation is that it is a filter rather than an air exhaust duct connector. If the required piece is the round adaptor or duct connection, the 12120600003049 connector is the more appropriate match.
Final choice by use case
- Replace an air exhaust duct connector: Choose Comfort Aire Part # 12120600003049.
- Replace an air conditioner filter: Choose Comfort Aire Part # 12100204000202.
- Choosing between the two on price alone: Start with the named part role first; the $3.68 spread does not overcome the fact that one is a duct connector and the other is a filter.
For this head-to-head, there is no all-purpose winner. The correct purchase is the one whose part number and component name align with the specific air conditioner replacement job.
