Master Flow Dampers balance and adjust the air flow in individual runs of round pipe in HVAC systems. The dampers include hardware that makes it easy to install into existing round pipe as well. They are constructed of galvanized steel for durability. Only one wing nut is required for installation.

• Spring-loaded hardware for easy mounting into existing round pipe
• Helps to control airflow in a run of pipe
• Always insulate ductwork for greater system efficiency and comfort

The ZoneMaster Motorized Adjustable Damper controls airflow in an HVAC system or fresh air intake. Available as power closed/spring return or power open/spring return. Adjustable close or open position range stops. Easy to wire, 2 wire installation. Save energy by controlling airflow.

• Safe, UL listed 24 VAC/ 20 VA plug-in transformer included
• 24 VAC, 1 RPM, 60 Hz, 6-Watt 2 wire synchronous hysteresis motor
• 20-Gauge blade closes against gasket for minimal leakage
• Free wheeling coupling for long life
• Male crimped and female non-crimped ends to connect to rigid or flexible round duct

MFG Part# VCDR-53-10-KIT

• Genuine OEM product
• Multiple applications (such as drain pans or anything driven by a size or dimension)
• For Gas Furnace Applications (pilots, flame sensors, etc.)

• LEDGE LOUNGER Ledge Lounger Mainstay Adirondack - Assemble Ready Sky Blue
• Simple, easy to install, 2-wire hysteresis gear motor
• Power Open/Spring Return (Normally Closed)
• Patented Adjustable Coupler with set points from 0-90 degrees in both powered and unpowered positions
• Male crimped and female uncrimped ends to connect to rigid or flexible round duct
• 22-24 gauge galvanized steel pipes
• 20-gauge blade closes against gasket for minimal leakage
• Free-wheeling coupling for long life
• Easily integrated with an existing zone controller system or any controller that supplies 24 Volts AC
• Operate as a standalone device with either our stud-mount or plug-in UL-listed transformers.
• Meets strict requirements for US government-funded Build America Buy America Act (BABAA) projects
• Engineered and Assembled in the USA
• 3-year limited warranty
• MFG# ZC212X

• LEDGE LOUNGER Ledge Lounger Mainstay Adirondack Reg-Assemble Ready Sky Blue
• Simple, easy to install, 2-wire hysteresis gear motor
• Power Closed/Spring Return (Normally Open)
• Patented Adjustable Coupler with set points from 0-90 degrees in both powered and unpowered positions
• Male crimped and female uncrimped ends to connect to rigid or flexible round duct
• 22-24 gauge galvanized steel pipes
• 20-gauge blade closes against gasket for minimal leakage
• Free-wheeling coupling for long life
• Easily integrated with an existing zone controller system or any controller that supplies 24 Volts AC
• Operate as a standalone device with either our stud-mount or plug-in UL-listed transformers.
• Meets strict requirements for US government-funded Build America Buy America Act (BABAA) projects
• Engineered and Assembled in the USA
• 3-year limited warranty
• MFG# ZO204

The Inductor 8 in. Corded In-Line Duct Fan is engineered to overcome back pressure and boost air in forced air heating and cooling systems without upsetting the balance in the closed loop system. The DB208C boosts airflow in ducts with low air delivery to improve comfort and energy efficiency. If you have rooms that are too hot or too cold due to poor airflow, this is an efficient and economical solution.

• UL listed E227633 heating and cooling equipment UL 1995 and CSA C22.2 no. 236
• 210 CFM free air to maximum boosted air 500 CFM
• Thermally protected class B motor, 55 running Watt, 0.70 startup Amp, 120 VAC, 60 Hz
• Engineered polycarbonate blade to minimize noise and vibration
• 6 ft. heavy duty SJT 3 conductor 18-Gauge grounded cord
• Crimp and bead on 1 end for easy installation
• Installs in any position
• Corrosion-resistant galvanized metal
• Installation screws included
• Plugs right into the DuctStat, model DS100, (sold separately) for automatic temperature controlled on/of operation

• DiversiTech 12in Duct Fan - 970 CFM, 65W
• Quick and easy installation
• Permanently lubricated
• Saves on utility bills year round
• MFG# 625-AF12

MFG Part# VCDR-53-6-KIT

• Genuine OEM product
• Multiple applications (such as drain pans or anything driven by a size or dimension)
• For Gas Furnace Applications (pilots, flame sensors, etc.)

The Duct Muffler 10 in. In-Line Noise Muffler reduces noise from fans and carbon filter systems. Excellent noise reduction for HVAC systems, fans and hydroponics applications. Reduce noise traveling through duct work the Duct Muffler In-Line Noise Muffler reduces noise heard through registers from adjacent rooms or noisy neighbors. Does Not Restrict Airflow through duct. Maintenance free and easy to install.

• Acoustic liner UL Listed, class 1 air duct
• Building code compliant, meets NFPA standards 90A and 90B
• Fits 10 in. flex or metal duct
• 1-year limited warranty
• Available in 6 in., 8 in., 10 in. and 12 in. Dia

The ZoneMaster Motorized Adjustable Damper controls airflow in an HVAC system or fresh air intake. Available as power closed/spring return or power open/spring return. Adjustable close or open position range stops. Easy to wire, 2 wire installation. Save energy by controlling airflow.

• Safe, UL listed 24 VAC/ 20 VA plug-in transformer included
• 24 VAC, 1 RPM, 60 Hz, 6-Watt 2 wire synchronous hysteresis motor
• 20-Gauge blade closes against gasket for minimal leakage
• Free wheeling coupling for long life
• Male crimped and female non-crimped ends to connect to rigid or flexible round duct
• Provides improved comfort and energy savings

• LEDGE LOUNGER Ledge Lounger Mainstay Adirondack Reg-Assemble Ready-Sky Blue
• Energy efficient and economic solution
• Transfer air to rooms that are too hot or too cold
• For use with PTAC units, mini split systems, fireplaces, wood stoves, and window air conditioning units.
• 2-Speed motor
• Easy to install in any frame wall (3 ¾”-6 ½” thick)
• 10' power cord
• Fan airflow exhausts on the switch side. For special build fan with airflow exhausting on non-switch side, please contact us for details.
• Paintable grilles to easily color match the fan to your walls
• 12 month limited warranty
• MFG# TW108

• LEDGE LOUNGER Ledge Lounger Mainstay Adirondack Reg- Assemble Ready Sky Blue
• Shorter drying time
• Less wear and tear on the dryer
• Reduced lint buildup inside dryer and duct
• Easy installation
• Thermal overload protection and features an automatic reset
• Current sensing switch
• For use in a duct with a total equivalent length of 25 feet to 140 feet.
• 5 Year Limited warranty
• MFG# DRY04

The Inductor 5 in. Corded In-Line Duct Fan is engineered to overcome back pressure and boost air in forced air heating and cooling systems without upsetting the balance in the closed loop system. The DB205C boosts airflow in ducts with low air delivery to improve comfort and energy efficiency. If you have rooms that are too hot or too cold due to poor airflow, this is an efficient and economical solution.

• UL listed E227633 heating and cooling equipment UL 1995 and CSA C22.2 no. 236
• 75 CFM free air to maximum boosted air 130 CFM
• Thermally protected class B motor with automatic reset thermal fuse, 30 running watts, 0.35 startup Amp, 120 VAC, 60 Hz
• Engineered polycarbonate blade to minimize noise and vibration
• 6 ft. heavy duty SJT 3 conductor 18-Gauge grounded cord
• Crimp and bead on 1 end for easy installation
• Installs in any position
• Corrosion-resistant galvanized metal
• Installation screws included
• Plugs right into the DuctStat, model DS100, (sold separately) for automatic temperature controlled on/of operation

• LEDGE LOUNGER Ledge Lounger Mainstay Adirondack Regular-Assemble Ready/Sky Blue
• Effective solution to reduce radon in your home.
• Quiet motor generates high volume and pressure
• MET listed for continuous use and indoor/outdoor operation
• Proprietary impeller design builds high suction and force suitable for sub-slab depressurization
• Anti-vibration PVC couplers are included
• 5 year limited warranty
• MFG# RDK04-3

• LEDGE LOUNGER Ledge Lounger Mainstay Adirondack Reg-Assemble Ready/Sky Blue
• Simple, easy to install, 2-wire hysteresis gear motor
• Power Open/Spring Return (Normally Closed)
• Patented Adjustable Coupler with set points from 0-90 degrees in both powered and unpowered positions
• Male crimped and female uncrimped ends to connect to rigid or flexible round duct
• 22-24 gauge galvanized steel pipes
• 20-gauge blade closes against gasket for minimal leakage
• Free-wheeling coupling for long life
• Easily integrated with an existing zone controller system or any controller that supplies 24 Volts AC
• Operate as a standalone device with either our stud-mount or plug-in UL-listed transformers.
• Meets strict requirements for US government-funded Build America Buy America Act (BABAA) projects
• Engineered and Assembled in the USA
• 3-year limited warranty
• MFG# ZC206X

• LEDGE LOUNGER Ledge Lounger Mainstay Adirondack Regular-Assemble Ready-Sky Blue
• Simple, easy to install, 2-wire hysteresis gear motor
• Power Closed/Spring Return (Normally Open)
• Patented Adjustable Coupler with set points from 0-90 degrees in both powered and unpowered positions
• Male crimped and female uncrimped ends to connect to rigid or flexible round duct
• 22-24 gauge galvanized steel pipes
• 20-gauge blade closes against gasket for minimal leakage
• Free-wheeling coupling for long life
• Easily integrated with an existing zone controller system or any controller that supplies 24 Volts AC
• Operate as a standalone device with either our stud-mount or plug-in UL-listed transformers.
• Meets strict requirements for US government-funded Build America Buy America Act (BABAA) projects
• Engineered and Assembled in the USA
• 3-year limited warranty
• MFG# ZO205

• LEDGE LOUNGER Ledge Lounger Mainstay Adirondack Reg-Assemble Ready Sky Blue
• Simple, easy to install, 2-wire hysteresis gear motor
• Power Open/Spring Return (Normally Closed)
• Patented Adjustable Coupler with set points from 0-90 degrees in both powered and unpowered positions
• Male crimped and female uncrimped ends to connect to rigid or flexible round duct
• 22-24 gauge galvanized steel pipes
• 20-gauge blade closes against gasket for minimal leakage
• Free-wheeling coupling for long life
• Easily integrated with an existing zone controller system or any controller that supplies 24 Volts AC
• Operate as a standalone device with either our stud-mount or plug-in UL-listed transformers.
• Meets strict requirements for US government-funded Build America Buy America Act (BABAA) projects
• Engineered and Assembled in the USA
• 3-year limited warranty
• MFG# ZC204X

The DuctMuffler 6 in. In-Line Noise Muffler reduces noise from fans and carbon filter systems. Excellent noise reduction for HVAC systems, fans and hydroponics applications. Does Not Restrict Airflow through duct. Maintenance free and easy to install.

• Fits 6 in. flex or metal ducts
• Meets NFPA standards 90A and 90B
• Acoustic liner UL Listed, class 1 air duct
• Building code compliant

• LEDGE LOUNGER Ledge Lounger Mainstay Adirondack Reg-Assemble Ready Sky Blue
• Simple, easy to install, 2-wire hysteresis gear motor
• Power Open/Spring Return (Normally Closed)
• Patented Adjustable Coupler with set points from 0-90 degrees in both powered and unpowered positions
• Male crimped and female uncrimped ends to connect to rigid or flexible round duct
• 22-24 gauge galvanized steel pipes
• 20-gauge blade closes against gasket for minimal leakage
• Free-wheeling coupling for long life
• Easily integrated with an existing zone controller system or any controller that supplies 24 Volts AC
• Operate as a standalone device with either our stud-mount or plug-in UL-listed transformers.
• Meets strict requirements for US government-funded Build America Buy America Act (BABAA) projects
• Engineered and Assembled in the USA
• 3-year limited warranty
• MFG# ZC210S

• LEDGE LOUNGER Ledge Lounger Mainstay Adirondack Reg-Assemble Ready-Sky Blue
• Watertight - Rated for use indoor/outdoor
• Installs in any position
• Balanced Motor/Impeller
• Ball bearings are permanently sealed and lubricated.
• Backward inclined blades
• Vibration absorbing material
• UV Protected/Flame Retardant Thermal Plastic Resin
• 140-degreee F (60-degree C) Maximum Air Stream Temperature
• 5 Year Limited warranty
• MFG# TF106-CRD

Zone master motorized adjustable damper controls airflow in an HVAC system or fresh air intake. Available as power closed/spring return or power open/spring return. Adjustable close or open position range stops. Easy to wire, 2-wire installation. Save energy by controlling airflow. High-efficiency impeller creates the negative pressure needed for sub-slab depressurization.

• Safe, UL listed 24 VAC/ 20 VA plug-in transformer included
• 24 VAC, 1 RPM, 60 Hz, 6-Watt 2 wire synchronous hysteresis motor
• 20-Gauge blade closes against gasket for minimal leakage
• Free wheeling coupling for long life
• Male crimped and female non-crimped ends to connect to rigid or flexible round duct
• Provides improved comfort and energy savings

The DuctMuffler 12 in. In-Line Noise Muffler reduces noise from fans and carbon filter systems. Excellent noise reduction for HVAC systems, fans and hydroponics applications. Reduce noise traveling through duct work the DuctMuffler In-Line Noise Muffler reduces noise heard through registers from adjacent rooms or noisy neighbors. Does Not Restrict Airflow through duct. Maintenance free and easy to install.

• Acoustic liner UL Listed, class 1 air duct
• Building code compliant, meets NFPA standards 90A and 90B
• Fits 12 in. flex or metal duct
• 1-year limited warranty
• Available in 6 in., 8 in., 10 in. and 12 in. Dia

• LEDGE LOUNGER Ledge Lounger Mainstay Adirondack Reg-Assemble Ready Sky Blue
• Simple, easy to install, 2-wire hysteresis gear motor
• Power Open/Spring Return (Normally Closed)
• Patented Adjustable Coupler with set points from 0-90 degrees in both powered and unpowered positions
• Male crimped and female uncrimped ends to connect to rigid or flexible round duct
• 22-24 gauge galvanized steel pipes
• 20-gauge blade closes against gasket for minimal leakage
• Free-wheeling coupling for long life
• Easily integrated with an existing zone controller system or any controller that supplies 24 Volts AC
• Operate as a standalone device with either our stud-mount or plug-in UL-listed transformers.
• Meets strict requirements for US government-funded Build America Buy America Act (BABAA) projects
• Engineered and Assembled in the USA
• 3-year limited warranty
• MFG# ZC208X

MFG Part# VCDR-53-12-KIT

• Genuine OEM product
• Multiple applications (such as drain pans or anything driven by a size or dimension)
• For Gas Furnace Applications (pilots, flame sensors, etc.)