Quickflash HVAC Flashing - A/C U-S Squared Line Set Flashing Panel

$37.95

A/C U-S: fits single line sets with 1-1/2" to 3-1/2" insulation tubing.  Squared for Siding and Stucco Exterior Finishes.

Click here for our Electrical, Plumbing, or other HVAC flashing panels:

Box Quanity: box of 2
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Vendors: Quickflash SKU: A/C U-S
  • Easy Returns

    Easy Returns

    Return within 30 days of purchase date

  • Technical Support

    Technical Support

    Available 9am - 5pm EST Mon-Fri

  • Customer Support

    Customer Support

    Available 9am - 5pm EST, Mon-Fri

  • Fast Shipping

    Fast Shipping

    Ships within 48 hours if in stock

A/C U-S: fits single line sets with 1-1/2" to 3-1/2" insulation tubing.  Squared for Siding and Stucco Exterior Finishes.

Click here for our Electrical, Plumbing, or other HVAC flashing panels:

Quickflash HVAC Flashing - A/C U-S Squared Line Set Flashing Panel

Quickflash HVAC Flashing Panel A/C US: fits single line sets with 1-1/2" to 2-3/4" insulation tubing.  Squared for Siding and Stucco Exterior Finishes.

 

Rubber Seal included     ----------->

Quickflash A/C U-S: A/C line set Squared flashing panel (siding and Stucco)

Quickflash HVAC Flashing Panels provide the natural building industry with the ultimate solution to weatherproofing plumbing, electrical, gas and HVAC wall penetrations and protrusions.

Quick, Reliable Installation of Quickflash HVAC A/C U-S Flashing Panels

Quickflash is quick and easy to install, the patented, made in the USA flashing panels replace the old, unreliable caulking, tape flashing, and/or sheet metal flashing methods all together--saving the builder thousands of dollars a year from potential moisture related problems such as toxic mold and possible litigation.Why Take the Risk with Inferior Systems?

Quickflash flashing is a key component in the building process. Quickflash panels complete the building envelope system and offer a no-caulk friction seal for reducing liability for moisture intrusion, creating an air barrier, and even preventing insect infestation through the penetrations or protrusions. Caulking breaks down over time. Incomplete and improper caulking of penetrations is one of intrusion. Any time the building envelope is breached, proper sealing is essential. You flash everything else--doors, windows, vents--now you can flash the exterior penetrations as well, so why take the risk?

Warning: All Quickflash® products maximum heat threshold is 160 °F. Quickflash® products are combustible and should be protected from flame and other high heat.

Quickflash also makes:

Electrical Flashing Panels

Plumbing Flashing Panels

A/C U-C Line Set Flashing Panels, Curved Line Set Flashing Panel

A/C U-B Line Set Flashing Panels - Universal Brick and Cultured Stone

Quickflash HVAC Panel Installation is Quick and Easy

(see videos and PDFs below for details for installation both before and after WRB is installed)

Quickflash Quick and Easy Installation

Always reference the product catalog and/or electrical cross-reference for the correct size Quickflash® panel to install

Always use the correct the size panel. Do Not cut the Rubber Seal. Use of fasteners is optional.

Warning: All Quickflash® products maximum heat threshold is 160 °F. Quickflash® products are combustible and should be protected from flame and other high heat.

Installation videos for applications using housewrap / Weather Resistant Barrier (WRB)

Quickflash® Installation Guide (Video) for A/C Panels installed BEFORE Weather Resistant Barrier

Quickflash® Installation Guide (PDF) for A/C Panels installed BEFORE Weather Resistant Barrier

Quickflash® Installation Guide (Video) for A/C Panels installed AFTER Weather Resistant Barrier

Quickflash® Installation Guide (PDF) for A/C Panels installed AFTER Weather Resistant Barrier

All Quickflash® Flashing panels are made in the USA Quickflash® Weatherproofing Products, Inc. products are covered by one or more of the following United States Letters Patent: 6,395,984; 6,543,186; 6,596,938; 6,649,835; 7,305,801; 7,389,616; 7,730,681; 7,640,699; 6,860,070 and other patents pending

  • Weight 4.5 lbs
  • Box Quanity box of 2, box of 4

  • 5
    420 (87.9%)
  • 4
    34 (7.1%)
  • 3
    15 (3.1%)
  • 2
    2 (0.4%)
  • 1
    7 (1.5%)
95% of customers rate this company 4- or 5-stars
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Cassandra P. Verified Customer
11-01-25

Its nothing like what I thought it was but buying and shipping process was smooth.

Shawn S. Verified Customer
11-01-25

Easy ordering and fast delivery

Sophia Verified Customer
10-31-25

I spoke with the person in the Technical Support department who listened and understood my complicated circumstances and made the perfect recommendation. I received the product within a couple of days and before the weekend ended, the job was complete and I am very pleased with results. Thank you, Eco Building Products for your support and product recommendation.

Luis J. Verified Customer
10-26-25

Good jop

Ed G. Verified Customer
10-25-25

The staff gave me good advice on how the products work and which ones to use. And they shipped it here really fast.

Jillian B. Verified Customer
10-25-25

I didn't get the one I wanted but was quickly offered a different one or wait till more came in.

Jean H. Verified Customer
10-24-25

Thumbs up

Bahram S. Verified Customer
10-24-25

******

A. S. Verified Customer
10-24-25

Easy to order and arrived on time

Robinson H. Verified Customer
10-20-25

good service and quick fulfilment

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Customer Reviews

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C
Carl Nelson

Best price online.

J
Joshua Phipps

The product is much larger than it appeared in the pictures and would look silly on my house. I ended up having to cut it down to a smaller size. I would have returned it, but your return policy would only give me 75% back plus I would have to pay shipping.

Quickflash AC U-S Universal Squared HVAC Flashing

Quickflash HVAC Flashing - A/C U-S Squared Line Set Flashing Panel

$37.95