Spread All Air Flow Vents

Spread-All MFG. CO.



Maximize the efficiency of your grain drying bins with our robust Spread-All Roof Vents. Specially designed for seamless integration on any bin, the ease of installation is unmatched—making it possible for a single person to set up without a hitch. A staple for every drying bin setup, these vents are priced competitively to provide you with significant value.

Our selection includes various sizes and angles to fit your specific needs:

- 8'' x 8'' Roof Vent – A compact solution at a 70º angle.
- 12'' x 12'' Roof Vent – Perfect for medium-sized bins, with a 70º fixed angle.
- 14 1/2'' x 14 1/2'' Roof Vent – Available in both 70º and 90º angles for versatile application.
- 14 1/2" x 14 1/2" Pivot Screen Roof Vent – Offering adjustable functionality in 70º and 90º angles.
- 18'' x 18'' Roof Vent – The ultimate choice for larger bins, also in 70º and 90º angles.

Each vent comes with a heavy, detachable angle base and lock seam joints ensuring durability and ease of maintenance. The included birdproof screen safeguards against pests while maintaining optimal airflow. The commitment to quality is evident in the 100% galvanized construction designed to endure years of exposure to harsh weather.


- Lightweight (67 pounds).
- Only 15'' x 15'' space needed on bin roof so that vent can be mounted fairly close to peak of bin to remove moist air out of the peak and top bin.
- Has a SA-12075 aeration fan to pull moist air out of top of bin (plug enclosed).
- Can be shipped totally assembled (in two boxes) by UPS.
- Installed like a regular roof vent, mounting the fan to underside of roof sheet.
- Economical to purchase and operate.

The installation is a breeze thanks to symmetrically punched holes, effectively reducing setup time and effort. For your peace of mind, our shipping policy includes Parcel and LTL Shipping across the Lower 48 States, ensuring you get your vents swiftly and securely. We accept multiple payment methods, including Credit Card, PayPal, ACH, and Check, providing you with flexibility and convenience for your transactions.

For any inquiries or support, reach out to us at or call us at 218-210-0420. Make a smart investment in your farm’s productivity with Spread-All Roof Vents – the low-cost, durable solution to grain bin ventilation.

Extra Information

Spread-All MFG. CO.