GAF Master Flow Roof Jack with Vent Cap, 4 in Diameter, 26-Gauge, Mill Finish
SKU: 20984342333

GAF Master Flow Roof Jack with Vent Cap, 4 in Diameter, 26-Gauge, Mill Finish

Sale price$40.77 Regular price$45.30
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Description

GAF Master Flow Roof Jack with Vent Cap, 4 in Diameter, 26-Gauge, Mill FinishMaster Flow Roof Jack with Vent Cap (4") Durable 26 gauge roof jack with integrated vent cap for kitchen, bath, and attic fan ventilation. Designed for roof pitches 3: 12 to 5: 12, with a mill finish for long lasting performance. Key Features: Integrated Vent Cap: Helps prevent rain and debris intrusion while exhausting air Proper Fit: 4 in diameter with 10 1 8 in height for common fan ducting Roof Pitch Compatibility: Installs on 3: 12 to 5: 12 roofs

Master Flow Roof Jack with Vent Cap (4")

Durable 26-gauge roof jack with integrated vent cap for kitchen, bath, and attic fan ventilation. Designed for roof pitches 3:12 to 5:12, with a mill finish for long-lasting performance.


Key Features:

  • Integrated Vent Cap: Helps prevent rain and debris intrusion while exhausting air
  • Proper Fit: 4 in diameter with 10-1/8 in height for common fan ducting
  • Roof Pitch Compatibility: Installs on 3:12 to 5:12 roofs
  • Durable Construction: 26-gauge metal in mill finish for strength
  • Contractor-Friendly: Single-piece jack simplifies rooftop ventilation tie-ins

Specifications Table:

Specification Details
Brand GAF
Product Name MasterFlow Roof Jack with Vent Cap
Manufacturer Number RJVC4
Product Number GAF26RJVC4
Diameter 4"
Height 10-1/8"
Thickness 26 Gauge
Color/Finish Mill Finish
Allowable Roof Pitch 3:12 to 5:12
Pieces per Carton 6
Unit of Measure Each (EA)
Weight 2.6667 lb
Style Ventilation and Drainage

Frequently Asked Questions (FAQ):

Q: What duct size does this roof jack fit?
A: It is designed for 4-inch diameter duct connections.


Q: What roof pitches can it be installed on?
A: Suitable for roofs with pitches from 3:12 to 5:12.


Q: Is the vent cap included?
A: Yes, the unit includes an integrated vent cap.


Q: What is the material thickness?
A: It is made from 26-gauge metal.


Q: How tall is the roof jack?
A: The height is 10-1/8 inches.


A Sleek, Functional Accent for Venting Done Right

This roof jack’s sculpted cap and clean mill finish bring a refined, industrial note to the roofline. The integrated vent cap is a standout, marrying performance with crisp geometry. Pair it with galvanized accessories for a cohesive, modern exterior palette. A small detail with big impact, it elevates utility to a polished, luxurious finish.


Choose the GAF Master Flow Roof Jack with Vent Cap for reliable, clean ventilation on 3:12–5:12 roofs—upgrade your airflow today.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 20984342333

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Justine
Lexington, US
★★★★★ 3
Good for my collection.
Format: Hardcover
This was another quick and entertaining read. This instalment wasn't as enjoyable as some of the other books but it was still good. I'm glad to have it in my collection.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 27, 2014
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Sara Reads Romance
Phoenix, US
★★★★★ 4
SO GOOD!
Format: Audiobook
I haven’t read a YA or a thriller in such a long time so having both of these combined in one book was an absolute pleasure because it was such a fun book to read! This is my first full length novel by this author, I’ve read MANY of her fanfiction writings and they are truly top tier, and I knew this would be just as good as, if not better. And to no surprise, it was. There was a plethora of secrets and a ton of mystery sewn in throughout this book. It kept me guessing the entire time, which I absolutely love about thrillers. It took me a little bit to get into it after the first few chapters but once I did, I was thoroughly sucked into it. I read from chapter 5 on in one sitting. That epilogue.. SO GOOD! And I really want more. I highly recommend this if you’re looking for an intriguing, easy, filled with mystery, suspense, and something different. P.s. I would thoroughly enjoy a romance book between Jodi and Julian. PLEASE AND THANK YOU! ⭐️⭐️⭐️⭐️
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Reviewed in the United States on May 16, 2025
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christine sonota
Belleville, US
★★★★★ 5
please tell me there’s a second book
Format: Kindle
Stayed up until 3 a.m. trying to finish this book—that’s how hooked I was. I almost gave it 4.5 stars because the ending didn’t fully land for me, but hearing there might be a second and third book sealed it. Five stars. Please tell me there’s more coming. Juliann’s ending has been living rent-free in my head ever since.
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Reviewed in the United States on May 26, 2026
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Brandi Book Nook
Port Orchard, US
★★★★★ 3
⭐️⭐️⭐️
Format: Kindle
Jodi Dillon, Julian Hollister, Lucy Reed, Paige Montgomery, and the infamous Zach Thrasher make up the elite friend group, The Thrashers, at New Helvetia High School. Once Emily Mills dies on prom night, the Thrashers are under investigation for her death. If you enjoyed Pretty Little Liars, 13 Reasons Why or One Tree Hill this is a book I would recommend to you! You will get mysterious text messages, Emily Mills’ journal and characters that reminded me of Lucas/Nathan.
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Reviewed in the United States on May 13, 2025
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Chelsye Lopez
Massapequa, US
★★★★★ 4
Great YA thriller
Format: Kindle
(4.5⭐️) This just might be my favorite YA thriller to date. Julie Soto just doesn’t miss and I wouldn’t even be mad if this book got a sequel. That epilogue- WOW! Absolutely did not see it coming and I absolutely need more. This one definitely gives Pretty Little Liars vibes and as someone who was obsessed with that show, it really kept me engaged throughout the whole book. The paranormal activities intertwined made it nearly impossible to want to put this down. Each character’s complexity was perfect for the story. They all had their own secrets and it made the drama SO GOOD. Plus a little slow burn romance mixed in as well? Perfect. I was eating it up. I absolutely recommend picking this up ASAP.
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Reviewed in the United States on May 28, 2025

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