QWORK Draft Blocker 4 Inch Damper Stopper Duct Damper Backflow Preventer Inline Built-in Fan Vent Ventilation Vent Deflector, 2 Pack
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Home » Building Supplies Store » QWORK Draft Blocker 4 Inch Damper Stopper Duct Damper Backflow Preventer Inline Built-in Fan Vent Ventilation Vent Deflector, 2 Pack
17199
8600
Product Details :
- Manufacturer : QWORK
- Country of Origin : China
- Item part number : CA7134
- ASIN : B09NNLFYHK
Product Features :
- Design: 4 Inch Damper Stopper with 2 valves designed for air conditioners (AC), dryers, exhaust units, hoods or range hoods, heating ducts, vents and other HVAC applications. Valve opens and closes automatically at low airflow. It has a smooth running spring and an internal foam strip to prevent rattling of the blade and can be mounted horizontally or vertically.
- Feature: Backdraft damper for insertion into inch ventilation ducts. The return air damper RKI opens and closes automatically. It has a strong spring and can be mounted horizontally or vertically. The flip-up cover is suitable for retrofitting because it sits completely inside the duct.
- Instruction: Install by inserting it into the vent pipe until it stops. The spring should be positioned horizontally for horizontal installation so that it can optimally open and close. Install the return louvers with the damper blades open in the outlet direction only.
- Application: Return air valves can be inserted into flexible or non-flexible ventilation ducts. Perfect for air conditioners (AC), dryers, exhaust units, hoods or range hoods, heating ducts, vents and other HVAC applications. They cannot be used with plastic ducting because of the difference in size.
- 100% Satisfied Service: Enjoy a smooth & frustration free experience with our 100% Satisfied Service in one Month!
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