Smart Vent Flood Vent Stacker for Sale | Insulated Series | 1540-521

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  • Insulated Smart Vent Model 1540-521 for flood protection with 400 sq.ft. coverage

Flood Vent Insulated Stacker 1540-521: Available in 5 - 7 Business Days

$15.00 (Fixed shipping cost)

Product Description


The Insulated FLOOD VENT series is designed for use in conditioned spaces where flood protection is required, but natural air ventilation is not desired.

For situations where a sealed crawlspace is being utilized in a floodplain, flood protection is still required.

Stacker Models are twice as efficient as a single unit, and are a great solution for:

       • large amounts of square footage requiring flood protection

       • situations where there is not enough wall space to fit single units

With flood insurance costs on the rise, our smart flood vents have never been more important. Protect your home and lower your flood insurance costs at the same time with a flood vent from Buy Smart Vents. Order yours today.

  • Made in the USA, our smart flood vents are FEMA-accepted.

  • Easy to use and install.

  • Up to 400 square feet of flood coverage.


Model Number: 1540-521 Available in 5 - 7 Business Days

Color: Stainless (Standard)

Flood Coverage: 400 sq. ft.

Air Ventilation: -

Vent Size: 16-in. x 16-in.

Rough Opening: 16 1/4-in. x 16 3/8-in.

Spec Sheet: view

Installation Manual: view


Please Visit the Smart Vent Products Site to view the full line of Smart Vent Products including stacker models, accessories, bucks, etc.

Product Videos

1540-521 Features & Benefits (Stacker FLOOD VENT) 04:02

  • 1540-521 Featu...

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