What are the specs for this Pressure Switch Tubing?

The correct replacement for Goodman model GMTH045-3A — A3468601 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 GMTH045-3A — A3468601.

IMAGE COMING SOON

Goodman

OEM Goodman 3/16 in. ID Pressure Switch Tubing for GMTH045-3A — A3468601

Name: OEM Goodman 3/16 in. ID Pressure Switch Tubing for GMTH045-3A — A3468601
Brand: Goodman
SKU: GOODMAN-12527
Price: 2.95 USD
Availability: InStock

SKU: GOODMAN-12527 Brand: Goodman

$2.95 $3.95

OEM Guaranteed

Same-Day Ship

30-Day Returns

Secure Checkout

Texas CMBL #19328542014

SAM.gov Registered

Govt POs Accepted

OEM Goodman A3468601 Pressure Switch Tubing (3/16" ID)

The Goodman A3468601 is genuine 3/16-inch inside-diameter pressure switch tubing used on GMTH045-3A gas furnaces and compatible Goodman/Amana models. This flexible hose connects the inducer draft port to the pressure switch, allowing the furnace to verify proper venting before the gas valve opens. Cracked, brittle, kinked, or clogged tubing is one of the most common — and cheapest — causes of a furnace that ignites then shuts down on a pressure-switch fault.

Specifications

Inside diameter: 3/16 in.
OEM Part Number: A3468601
Fits: Goodman GMTH045-3A and cross-compatible furnace models
Application: Draft / pressure switch sensing line
Material: High-temperature silicone hose, sold to factory length

OEM vs. Generic

Genuine OEM silicone tubing is rated for the furnace's heat and condensate exposure and holds its shape without collapsing under vacuum. Cheap vinyl substitutes harden and crack in the heat, re-creating the exact fault you're trying to fix. At this price, OEM is the obvious call.

Installation Difficulty: Very Easy

Rated Very Easy. Power down the furnace, slip the old hose off the inducer barb and pressure-switch port, and press the new tubing fully onto each fitting. Route it with a downward slope where possible to shed condensate and avoid traps. No tools required beyond checking for a snug fit.

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 3/16 in. ID Pressure...

$2.95

Frequently Asked Questions

Does this Pressure Switch Tubing fit my Goodman GMTH045-3A — A3468601?

Yes. This is the factory-specified OEM pressure switch tubing for the Goodman GMTH045-3A — A3468601. 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 pressure switch tubing on my Goodman GMTH045-3A — A3468601?

Difficulty: Medium (20–30 min)
Step 1: Turn off power. Step 2: Locate pressure switch near draft inducer. Step 3: Note tubing orientation. Step 4: Disconnect tubing and wires. Step 5: Remove screw, install new switch. Step 6: Reconnect tubing and wires, restore power.

My furnace shows a pressure switch error. What do I replace?

Furnace LED showing pressure switch error = switch not detecting draft inducer airflow. Try first: clear the rubber tubing to the switch (often clogged with condensation). If problem persists, replace the pressure switch.

Is this pressure switch 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 pressure switch 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.

Menu