Duct Air Dampers

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643FA Maximize the air and sound performance of your Broan® ventilation fan or range hood using one of our wide variety of ducting accessories.

Broan® Aluminum Inlet Wall Cap

For 8" Round Duct for Range Hoods and Bath Ventilation Fans

Intended for make-up air inlet applications

The make-up air damper is designed for use with Wolf Ventilation systems. Used to exchange air between indoors and outdoors, drawing fresh air into the home and replacing exhausted air.

Wolf® Stainless Steel Make-Up Air Damper

Whether you’re shopping for appliances or have questions about those you already own, we’ve got the resources you need. Talk directly to a customer care expert at the Sub-Zero, Wolf, and Cove service center, or connect with an appliance consultant at an official showroom near you. Get quick answers online, or reach a certified service provider or installer. And much more.

The damper is not required if using a recirculating kit.

The damper is controlled by a pressure switch and independently powered.

It can work with any blower or vent system, including in-line blowers.

It is connected to 120V supply, and the transformer installed reduces the power supplied to 24V.

The damper opens when a range hood is operating. Creating a known, controlled point for fresh air to enter the home while air is being exhausted from the building by the range hood.

When in use, gravity and the exhausted air force the damper open and closed. Dampers provide two key benefits for the home:

Facilitates air exchange between indoors and outdoors, by drawing fresh air into the home to replace exhausted air.

Helps avoid negative pressure conditions within the home, which may interfere with the proper operation of combustion equipment within the home by drawing in the fresh air.

Sub-Zero up to $2500 Rebate

Save up to $2500 on qualifying Sub-Zero purchases.

Use inline damper with Wolf Ventilation systems, to control airflow, and prevent backdraft.

Wolf® 8" Stainless Steel Round Inline Damper

*Compatible with 30:, 36", 45" Downdraft Ventilation.

Wolf® 10" Stainless Steel Round Inline Damper

*Compatible with 30", 36", 45" Downdraft Ventilation.

Broan is America’s leading brand of residential ventilation products including kitchen exhaust range hoods, bathroom ventilation fans, fresh air systems, whole-house fans and attic ventilators.

Broan® Roof Vent Kit

Maximize the air and sound performance of your Broan ventilation fan by using one of our wide variety of termination fittings specifically designed for Broan fans.

Black steel roof cap with built-in back draft damper and bird screen

8’ of 4” diameter flexible foil ducting conforms to UL 181 Class 1 Air Connector requirements

As one of the first appliance manufacturers to partner with world-class creative talent, Zephyr has always been at the forefront of design in the kitchen. Whether developing our own products or discovering and bringing to market the best of other categori

Zephyr Galvanized Exhaust Wall Cap with Damper

As one of the first appliance manufacturers to partner with world-class creative talent, Zephyr has always been at the forefront of design in the kitchen. Whether developing our own products or discovering and bringing to market the best of other categories, we apply our purpose-driven approach, impeccable taste, and adventurous spirit to deliver inspiring experiences that create emotional impact.

Zephyr 7" Galvanized Round Exhaust Cap with Damper

Zephyr 10" Galvanized Round Exhaust Cap with Damper

Zephyr 7" Galvanized Round Damper with Collar

For Models: AK2500BB, AK2500BS, AK2500BW, AK2536BB, AK2536BS, AK2536BW, AK2100BB, AK2100BS, AK2100BW, AK2136BB, AK2136BS, AK2136BW, AK2142BS, AK2148BS, AK7100AS, AK7100AS290, AK7100AS-BF, AK7136AS, AK7136AS290, AK7136AS-BF, ZPY-E30AS, ZPY-E30AS290, ZPY-E36AS, ZTA-E30AS, ZTA-E30AS290, ZTA-E36AS, AK9128AS, AK9128AS-BF, AK9134AS, AK9134AS-BF