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Enhance Airflow and Protection

Ventilation systems play an essential role in maintaining the airflow and indoor air quality of buildings. FAMCO’s foundation vents help prevent moisture buildup by promoting airflow through crawl spaces, reducing the risk of mold and mildew. Meanwhile, our louvered gable vents improve attic ventilation by allowing warm air to escape and fresh air to enter, preventing heat buildup and moisture-related damage.


  • FAMCO SDB square to round HVAC transition Box, galvanized steelFAMCO SDB square to round HVAC transition Box, galvanized steel
    Accessories

    Square to Round Transition Box

    Rated 4.99 out of 5
    $28.95$91.95 Select options This product has multiple variants. The options may be chosen on the product page
  • Storm collar for B vent, angled view.Storm collar for B vent, angled view.
    Accessories

    Storm Collar

    Rated 4.97 out of 5
    $17.95$80.95 Select options This product has multiple variants. The options may be chosen on the product page
  • FAMCO Flue Cap – Galvanized, top view close up. unpainted.FAMCO Flue Cap – Galvanized, top view close up. unpainted.
    Accessories

    Flue Cap – Galvanized

    Rated 5.00 out of 5
    $17.95$96.95 Select options This product has multiple variants. The options may be chosen on the product page
  • FAMCO Louvered Gable Vent - Galvanized SteelFAMCO Louvered Gable Vent - Galvanized Steel
    Featured Products

    Louvered Gable Vent – Galvanized

    Rated 4.88 out of 5
    $57.95$566.95 Select options This product has multiple variants. The options may be chosen on the product page
  • Painted Louvered Foundation Vent for Attic & Crawl Space Ventilation - FAMCOPainted Louvered Foundation Vent for Attic & Crawl Space Ventilation - FAMCO
    Foundation Vents

    Louvered Foundation Vent with Screen (No Damper) – Painted

    Rated 4.80 out of 5
    $17.95$28.95 Select options This product has multiple variants. The options may be chosen on the product page
  • Louvered Foundation Vent with Screen (No Damper) - Galvanized
    Foundation Vents

    Louvered Foundation Vent with Screen (No Damper) – Galvanized

    Rated 4.71 out of 5
    $14.95$23.95 Select options This product has multiple variants. The options may be chosen on the product page
  • The FAMCO IR Duct Increaser / Reducer - GalvanizedThe FAMCO IR Duct Increaser / Reducer - Galvanized
    Accessories

    Duct Increaser / Reducer – Galvanized

    Rated 4.87 out of 5
    $17.95$62.95 Select options This product has multiple variants. The options may be chosen on the product page
  • Top-down side view of FAMCO tapered duct reducer.Top-down side view of FAMCO tapered duct reducer.
    Accessories

    Tapered Duct Reducer

    Rated 4.90 out of 5
    $19.95$85.95 Select options This product has multiple variants. The options may be chosen on the product page
  • FAMCO Wall Vent Collar in galvanized steel.FAMCO Wall Vent Collar in galvanized steel.
    Accessories

    Wall Vent Collar – Galvanized

    Rated 5.00 out of 5
    $17.95$31.95 Select options This product has multiple variants. The options may be chosen on the product page
  • Stucco Ring for Round Wall VentsStucco Ring for Round Wall Vents
    Accessories

    Stucco Ring for Round Wall Vents

    Rated 4.96 out of 5
    $17.95 Select options This product has multiple variants. The options may be chosen on the product page
  • FAMCO Plastic Wall Vent Guard in white for 4" Wall Vents.FAMCO Plastic Wall Vent Guard in white for 4" Wall Vents.
    Accessories

    Plastic Wall Vent Guard (for use with LH 4″ Wall Vents w/ Movable Louvers)

    Rated 5.00 out of 5
    $17.95 Select options This product has multiple variants. The options may be chosen on the product page
  • Louvered Foundation Vent with Screen and Damper - Galvanized
    Damper and Screen

    Louvered Foundation Vent with Screen and Damper – Galvanized

    Rated 4.90 out of 5
    $23.95$34.95 Select options This product has multiple variants. The options may be chosen on the product page
  • Louvered Foundation Vent with Damper (No Screen) - Galvanized
    Damper Only

    Louvered Foundation Vent with Damper (No Screen) – Galvanized

    Rated 5.00 out of 5
    $17.95$28.95 Select options This product has multiple variants. The options may be chosen on the product page
  • Louvered Foundation Vent with Damper - Painted - 6 x 16 inch, BlackLouvered Foundation Vent with Damper - Painted - 6 x 16 inch, Black
    Damper and Screen

    Louvered Foundation Vent with Screen and Damper – Painted

    Rated 4.63 out of 5
    $28.95$39.95 Select options This product has multiple variants. The options may be chosen on the product page
  • Louvered foundation vent made of aluminum without screen or damper.Louvered foundation vent made of aluminum without screen or damper.
    Damper and Screen

    Louvered Foundation Vent with Screen and Damper – Aluminum

    Rated 5.00 out of 5
    $23.95$34.95 Select options This product has multiple variants. The options may be chosen on the product page
  • Louvered Foundation Vent (No Screen No Damper) - Galvanized
    Foundation Vents

    Louvered Foundation Vent (No Screen No Damper) – Galvanized

    Rated 4.00 out of 5
    $12.95$17.95 Select options This product has multiple variants. The options may be chosen on the product page
  • GVT_MAINGVT_MAIN
    Louvered Gable Vents

    Louvered Gable Vent with Round Transition

    Rated 5.00 out of 5
    $85.95$102.95 Select options This product has multiple variants. The options may be chosen on the product page
  • Painted Louvered Foundation Vent for Attic & Crawl Space Ventilation - FAMCOPainted Louvered Foundation Vent for Attic & Crawl Space Ventilation - FAMCO
    Foundation Vents

    Louvered Foundation Vent (No Screen No Damper) – Painted

    Rated 4.40 out of 5
    $14.95$20.95 Select options This product has multiple variants. The options may be chosen on the product page
  • Storm collar for B vent, angled view.Storm collar for B vent, angled view.
    Accessories

    Storm Collar – B Vent

    Rated 5.00 out of 5
    $17.95$57.95 Select options This product has multiple variants. The options may be chosen on the product page
  • Louvered Foundation Vent with Damper - Painted - 6 x 16 inch, BlackLouvered Foundation Vent with Damper - Painted - 6 x 16 inch, Black
    Damper Only

    Louvered Foundation Vent with Damper (No Screen) – Painted

    Rated 5.00 out of 5
    $20.95$34.95 Select options This product has multiple variants. The options may be chosen on the product page
  • FAMCO Copper Gable VentsFAMCO Copper Gable Vents
    Copper Vent Caps

    Copper Gable Vents

    Rated 4.92 out of 5
    $159.95$339.95 Select options This product has multiple variants. The options may be chosen on the product page
  • Top-down view of FAMCO Wall Vent Collar in aluminum.Top-down view of FAMCO Wall Vent Collar in aluminum.
    Accessories

    Wall Vent Collar – Aluminum

    Rated 5.00 out of 5
    $17.95$28.95 Select options This product has multiple variants. The options may be chosen on the product page
  • FAMCO Plumbing Nail PlateFAMCO Plumbing Nail Plate
    Accessories

    Plumbing Nail Plate

    Rated 4.00 out of 5
    $6.95$8.95 Select options This product has multiple variants. The options may be chosen on the product page
  • FAMCO Furnace Filter Rack - Galvanized Steel (Closed Front View)FAMCO Furnace Filter Rack - Galvanized Steel (Closed Front View)
    Accessories

    Furnace Filter Rack

    Rated 4.73 out of 5
    $125.95$152.95 Select options This product has multiple variants. The options may be chosen on the product page

Technical Information

FAMCO Ventilation Solution Benefits

Energy Efficiency
Reduces attic temperatures in homes and commercial buildings,
Moisture Buildup
Reduces attic temperatures in homes and commercial buildings,
Improved Airflow
Promotes better airflow and healthier environments.
Residential and Commercial Uses

Residential Use:

Essential for regulating air intake and improving indoor air quality.

Commercial Use:

Designed for both new construction and renovation projects to protect the ductwork airflow in buildings.

Product Highlights

Square to Round Transition Box:

This versatile box is primarily used to attach a ceiling register to your air supply and can also transition square ducts to round ducts in various applications.

Flue Cap – Galvanized:

This cap is designed to cap off or terminate the end of a pipe, offering a solution without a crimp, and is installed over the outside of the pipe. If you need a cap that fits inside the pipe, consider the GP flue plug with a crimp.

Louvered Foundation Vent with Screen (No Damper) – Painted:

This model does not include a damper, with the louvers fixed in the open position to allow for free air movement in crawl spaces or attic installations. It also features a built-in â…› inch screen for pest control.

Ventilation Installation Tips

Professional Installation:

While some vents may be installed by homeowners, professional installation is recommended for complex systems or areas with challenging access.

Frequently Asked Questions

Foundation and louvered gable vents each serve unique purposes to improve airflow and maintain the health of a building. Foundation vents promote air circulation in crawl spaces, while louvered gable vents help ventilate attics by allowing warm air to escape and fresh air to enter. 

When selecting vents for a building, consider the specific ventilation requirements of each area. For foundation vents, choose models that provide adequate airflow and consider features like adjustable louvers for seasonal use. For louvered gable vents, make sure the size and design provide enough ventilation to reduce heat and moisture. 

Our one-year warranty for foundation and louvered gable vents offers coverage for manufacturing defects. If you experience any issues or defects with your ventilation solutions, get in touch with our customer support team for assistance.

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