Goodman 3 to 3.5 Ton Evaporator Coil; Upflow/Downflow; Uncased A Coil; 20" Width

Nom. Tons: 3–3.5; Liquid Conn.: 3/8"; Suction Fitting: 3/4"; Width: 20"; Height: 19"; Depth: 20-1/8"; Wt. Lbs.: 29; Description: Uncased; Configuration: Upflow / Downflow; Metering Device: Flowrater; Color: Grey; Coil Type: Uncased;

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The CAUF3642C6 is an uncased A coil for use in upflow or downflow applications. The all-aluminum construction and advanced design of this coil improve its durability and heat transfer efficiency. Whether you're replacing a failing coil or installing a new system, you can choose the CAUF with confidence. Goodman pressure tests each coil twice before it leaves the factory and backs them with an excellent warranty.

All-Aluminum Coil

Goodman's evaporator coils use a reliable all-aluminum design featuring sine fins and grooved tubes. This design maximizes surface area and optimizes heat transfer for efficient comfort.

Condensate Management

A rust-resistant thermoplastic drain pan provides a safe, effective way to trap the condensate that forms on the CAUF evaporator coil.

Multi-Refrigerant Compatibility

R-22 refrigerant is no longer in production, but many older systems still use it. The CAUF is compatible with both R-22 and its replacement, R-410A. This makes it the perfect fit for any homeowner.

Extended Warranty

Goodman offers a 10-year limited parts warranty when you register your product online within 60 days of installation. An unregistered product has the standard 5-year warranty. 


General Information
TypeEvaporator Coil
Product LineCAUF
Refrigerant TypeR-410A
StyleA Coil
Configuration Upflow/Downflow
Installation AvailableYes


Capacity3 - 3.5 Tons
Cooling BTU42000
Nominal Minimum Cooling Capacity36000 BTU



Suction Connection Size7/8 Inch
Liquid Connection Size3/8 Inch
Product Height28 Inches
Product Width20 Inches
Product Depth20 1/8 Inches
Product Weight29 Pounds
Shipping Weight39 Pounds

ETL ListedYes
AHRI CertifiedYes