2'' Check Valve - Backdraft Damper - 2 inch Non-Return Damper Flap to Connect PVC Pipe or Hose - Perfect for Use in Flue, Sewer Pipeline, Bathrooms, Ventilation Systems, 2inch Horizontal

Additional Details from the Manufacturer

This item information is coming from the manufacturer. Some of the details may vary from the Nellis Auction listing. Please check the Quality Rating and Notes for information specific to this listing

More features

• Pipe cover flap, butterfly valve. Especially suitable for inserting into exhaust hose/PVC piping. Perfect for use in flue, kitchen, sewer pipeline, bathrooms, garages, air conditioners, fans, extractor hoods, ventilation systems.
• The flap valve opens and closes automatically, allowing only one-directional airflow, preventing cold air from entering. The inner rubber seal is used for better tightness and for noise reduction.
• The damper blades open only in the outflowing air direction when the shutter is installed. The shaft axis need be positioned vertically when the backflow flap is best installed in a horizontal position and inserted fully into the pipe.
• The casing of the flap is made of pvc. The valve blades are made of pvc. The shaft and spring are made of PVC.Flame retardant material can resist high temperature exceeding 150 ℃.
• This backdraft damper is a universal style, After purchasing the product, you will get a 5-year warranty and lifelong after-sales service.