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Honeywell Home ZD8X24TZ Zone Damper Bottom Mount 8" x 24" Power Close & Spring Open 24 VAC

ZD14X8TZ Honeywell Home Square Parallel Blade 24 VAC

Starting with the development of the first zoning dampers and registers in the 1950s to today, with exclusive Plug & Play dampers  Zonefirst has led the way in excellence and continued innovation.
ZONEFIRST is the first company that successfully developed and marketed HVAC Zoning Systems back in the 1950s and is today a leading manufacturer of HVAC zone dampers and zoning systems. Several other major zoning companies are in business due to ZONEFIRST.
It was in the mid to late 1950s when Richard Foster developed the first automatic motorized dampers, registers and difusers that were thermostatically controlled. He marketed these products under the trade name Zone-A-Trol with another company when in 1964 he founded Trolex Corporation and the start of the well known trade name Trol-A-Temp. In 1999 the Trol-A-Temp brand was acquired by Honeywell.
Since that time, Trolex has continued to manufacture zone dampers for a number of OEMs. In 2004 Trolex re-entered the HVAC market as ZONE-A-TROL and later the ZONEFIRST tradename. This new name signifies the many firsts the company has developed in the HVAC industry. We were the first company to develop automatic dampers, registers, and diffusers for zoning, centralized zone controllers, the first zoning system to feature normally open dampers and the first to zone heat pumps in the early 1970s

Starting with the development of the first zoning dampers and registers in the 1950s to today, with exclusive Plug & Play dampers  Zonefirst has led the way in excellence and continued innovation.
ZONEFIRST is the first company that successfully developed and marketed HVAC Zoning Systems back in the 1950s and is today a leading manufacturer of HVAC zone dampers and zoning systems. Several other major zoning companies are in business due to ZONEFIRST.
It was in the mid to late 1950s when Richard Foster developed the first automatic motorized dampers, registers and difusers that were thermostatically controlled. He marketed these products under the trade name Zone-A-Trol with another company when in 1964 he founded Trolex Corporation and the start of the well known trade name Trol-A-Temp. In 1999 the Trol-A-Temp brand was acquired by Honeywell.
Since that time, Trolex has continued to manufacture zone dampers for a number of OEMs. In 2004 Trolex re-entered the HVAC market as ZONE-A-TROL and later the ZONEFIRST tradename. This new name signifies the many firsts the company has developed in the HVAC industry. We were the first company to develop automatic dampers, registers, and diffusers for zoning, centralized zone controllers, the first zoning system to feature normally open dampers and the first to zone heat pumps in the early 1970s

ZD10X20TZ Honeywell Home Square Parallel Blade 24 VAC
Honeywell ZD10X20TZ

EWC Controls 6URD Zone Damper Round 6" 24 VAC
EWC Controls 6URD

Aprilaire Zone Damper 8" x 14" Bottom Mount
AprilAire, our mission has always been to make homes healthy through intuitive design and professional-grade solutions because healthy homes are the foundation for healthy people, families, and communities.

Healthy Living Everyone deserves to breathe Healthy Airno matter where you live or what your circumstances are Simplicity by Design

Our Healthy Air solutions are designed to be intuitive, easy to use, and environmentally friendly.

Making a Difference

Our work is fueled by a passion for making a Healthy Air difference.

We're committed to delivering real results through dedication to our customers and solutions that perform.

Aprilaire, our mission has always been to make homes healthy through intuitive design and professional-grade solutions because healthy homes are the foundation for healthy people, families, and communities.

Healthy Living Everyone deserves to breathe Healthy Airno matter where you live or what your circumstances are Simplicity by Design

Our Healthy Air solutions are designed to be intuitive, easy to use, and environmentally friendly.

Making a Difference

Our work is fueled by a passion for making a Healthy Air difference.

We're committed to delivering real results through dedication to our customers and solutions that perform.

Aprilaire Zoned Comfort Control is designed for residential new construction and provides the components needed forsimple, reliable and profitable installs.

Zone damper normally open; powers closed, allowing conditioned air to continue to flow if mechanical motor reaches end of service life.

• Motor covered for improved appearance
• Simplifies installationfewer wires to organize
• Gasket material minimizes air bypass when blade is closed
• All openings secured, preventing spray-in insulation from entering actuator
• Simple, labor-saving design
• Thumbscrew adjustable, no tools required
• Simple, visual system check and troubleshooting

Aprilaire, our mission has always been to make homes healthy through intuitive design and professional-grade solutions because healthy homes are the foundation for healthy people, families, and communities.

Healthy Living Everyone deserves to breathe Healthy Airno matter where you live or what your circumstances are Simplicity by Design

Our Healthy Air solutions are designed to be intuitive, easy to use, and environmentally friendly.

Making a Difference

Our work is fueled by a passion for making a Healthy Air difference.

We're committed to delivering real results through dedication to our customers and solutions that perform.

AprilAire, our mission has always been to make homes healthy through intuitive design and professional-grade solutions because healthy homes are the foundation for healthy people, families, and communities.

Healthy Living Everyone deserves to breathe Healthy Airno matter where you live or what your circumstances are Simplicity by Design

Our Healthy Air solutions are designed to be intuitive, easy to use, and environmentally friendly.

Our work is fueled by a passion for making a Healthy Air difference.

We're committed to delivering real results through dedication to our customers and solutions that perform.

Aprilaire Steel Slip-In Automatic Retrofit Round Zone Damper, 6"

Allows zoning installation without costly duct modification

High resolution LED on the damper lights when closed, simplifying system checks and trouble shooting

No gears technology assures long life

Spring-open operation assures consistent airflow