4ftFlexPro3

PythonPro 4 ft. Ridge Vent

When it comes to ridge ventilation, the PythonPro® 4 Ft. Ridge Vent delivers reliable performance with easy installation and long-term durability. Designed to promote continuous airflow along the roof peak, it helps reduce heat buildup, extend roof deck life, and lower utility costs—while maintaining a clean, streamlined roofline. Built for professional installers, this vent integrates seamlessly under ridge cap shingles and is engineered to meet the ventilation demands of modern roofing systems.

Benefits

 

This vent keeps your system performing at its best by promoting efficient airflow to reduce lint buildup and excess heat, helping prevent moisture damage inside the home. Its enclosed design works to keep out insects, critters, and rain, while the removable cap makes cleaning and maintenance simple and fast. With leak-prevention features built into the design, it helps reduce customer call-backs and gives installers a dependable solution they can trust on every shingle roof application.

Net Free Vent Area: 18 sq. in. NFVA per lineal ft

Dimensions: 14” Width x 48” Length

Roof Pitch: Conforms to any pitch from 3/12 to 16/12

Color: Black

Nails: Bag of thirty 3” nails included

Pack Unit: 10 pieces per carton

Installer Features: Pre-marked shingle nail lines for fast, accurate installation

How To Install

Related Products

Related Products

Python Rolled Ridge Vent

Our recycled plastic, single-layer ridge vent can be used under shingle ridge caps to keep attics cooler and dryer in all seasons.

65 Slant Back Vent

This patented, no-break polypropylene solution can be used as an intake or exhaust vent and features a high Net Free Venting Area of 65 plus a dent-free, low-profile design for greater curb appeal.

150 Round Vent

With 150 square inches of Net Free Venting Area, this no-rust/no-dent no-break polypropylene solution requires only a third of the roof penetrations of typical 50 NFVA vents, saving time and money.
Additional Resources

ADDITIONAL RESOURCES​​

VENTILATION CALCULATOR​​

Calculate the exact amount of ventilation needed for a well-balanced system.

TECHNICAL TOOLS​​

Dive deep into product sheets, diagrams, and full spec breakdowns. 

Roofing FAQ

Learn everything you need to know about ventilation.

Marco Industries