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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Ships within 48 hours · Estimated delivery Jul 10 - Jul 15

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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.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
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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Reviewed in the United States on May 7, 2026
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