What are the specs for this Tubing?

The correct replacement for Goodman model ATUF374316AA — B1796630 is this exact part. It is the factory-specified replacement with exact OEM specifications. Using a part with different specifications can cause equipment damage or void your warranty. You can verify this by checking the data plate on your Goodman equipment which lists the model number ATUF374316AA — B1796630.

What symptoms indicate I need a new tubing?

Common symptoms that indicate you need a new tubing include unusual noises, intermittent operation, complete failure to operate, or visible damage. For specific diagnostic guidance, visit nationalhvacparts.com/pages/hvac-diagnostic.

Is this tubing compatible with Bryant or Payne systems too?

Many Goodman parts are cross-compatible with Bryant and Payne systems since all three brands are manufactured by Carrier Global Corporation. The same physical part is often used across multiple brand labels with different model numbers. To verify cross-compatibility, check your Bryant or Payne equipment service manual for cross-compatible part numbers, or contact info@nationalhvacparts.com with your model number for confirmation.

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Goodman

OEM Goodman Flowrator Inlet Tube for ATUF374316AA — B1796630

Name: OEM Goodman Flowrator Inlet Tube for ATUF374316AA — B1796630
Brand: Goodman
SKU: GOODMAN-1934
Price: 10.95 USD
Availability: InStock

SKU: GOODMAN-1934 Brand: Goodman

$10.95 $14.78

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Texas CMBL #19328542014

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The Goodman B1796630 Flowrator Inlet Tube is a genuine OEM refrigerant tube that feeds the flowrator (piston/orifice) metering device in the ATUF374316AA air handler coil. It carries liquid refrigerant from the line set into the distributor so the coil receives the correct, evenly metered charge. A kinked, corroded, or leaking inlet tube causes poor cooling, frosting, and refrigerant loss — this factory part restores proper flow and a leak-tight connection.

Specifications

OEM Part Number: B1796630
Function: Flowrator / metering-device inlet refrigerant tube
Fits Model: ATUF374316AA Air Handler
Material: Copper refrigerant tubing
Brand: Goodman / Amana (Daikin family)

OEM vs. Generic

The inlet tube's diameter, length, and bend are matched to the coil distributor and flowrator body. OEM ensures the brazed joints and orifice seating line up exactly; generic tubing can force re-bending and risks restriction or leaks at the connection. For a clean braze and correct metering, use the genuine Goodman tube.

Install Difficulty

Advanced. Replacement requires recovering refrigerant, brazing the new tube, pulling a vacuum, and recharging the system — work that must be done by an EPA-certified technician. The part itself is inexpensive, but proper installation is critical to system performance and safety.

Shipping Information

Orders placed before 3PM CST ship same business day
Standard delivery: 2-5 business days
Express shipping available at checkout
Free shipping on orders over $75
Tracking number emailed upon shipment

Return Policy

30-day returns on unused parts in original packaging
Electrical parts (capacitors, contactors, control boards) are final sale once installed
Email info@nationalhvacparts.com to initiate a return
Refunds processed within 5-7 business days

OEM Goodman Flowrator Inlet Tube...

$10.95

Frequently Asked Questions

Does this Tubing fit my Goodman ATUF374316AA — B1796630?

Yes. This is the factory-specified OEM tubing for the Goodman ATUF374316AA — B1796630. It is a direct drop-in replacement that fits without modification. Always verify the model number on your equipment nameplate before ordering.

How do I replace the tubing on my Goodman ATUF374316AA — B1796630?

Refer to your equipment service manual for model-specific steps. General approach: turn off power, photograph connections, remove old part, install new part, restore power and test. For gas components, hire a licensed technician. Email info@nationalhvacparts.com for guidance.

What symptoms mean I need a new tubing?

Common symptoms: unusual noises, intermittent operation, complete failure, or visible damage. Visit our diagnostic hub for symptom-based troubleshooting.

Is this tubing compatible with Bryant or Payne too?

Many Goodman parts are cross-compatible with Bryant and Payne since all three brands are manufactured by Carrier Global Corporation. The same physical part is often used across brand labels with different model numbers. To verify: check your Bryant or Payne equipment service manual for cross-compatible part numbers, or email info@nationalhvacparts.com with your model number.

Should I use OEM or aftermarket for my Goodman tubing?

OEM recommended for reliability and warranty compatibility. OEM parts match exact factory specifications for proper fit, performance, and safety. While aftermarket alternatives cost less upfront, the risk of improper fit and reduced lifespan usually makes OEM the better value long-term.

How fast does National HVAC Parts ship?

Orders placed before 3:00 PM CST ship the same business day. Standard delivery is 2–5 business days anywhere in the continental United States. Express shipping available at checkout. We ship from Houston, TX to all 50 states. 30-day return policy on all parts.

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