Best Shutter Spring Steel Strip

4 Inch Draft Blocker Backdraft Damper Duct Draft Stopper One-Way Airflow Ducting Insert Backflow Preventer Inline Fan Vent Deflector Silver

【Material】The 4 inch backdraft damper is made of a Galvanized steel, the flap leaves are made of aluminum, while the Axis and spring are made of stainless steel..
【Installation】The backdraft damper is installed by pushing it into the ventilation pipe as far as it will go. The position of the spring should be horizontal when the flap is installed horizontally so that it can be opened and closed optimally. This also applies to the vertical installation..
【Function】This airflow regulating backdraft shutter fits over the TD lip and is designed to improve ventilation by preventing air from re-circulating when the fans are not in use..
【Wide Application】 These backdraft dampers can be widely used in ACs, exhaust fans, extractors, range hoods, heating ducts, vents and other residential, commercial and industrial applications..
【Note】Back draught valves can be inserted into ventilation ducts which are flexible or non flexible. Cannot be used with plastic ducts as the sizes are different..

This Performance Pack Model Fits All Miele Upright Vacuums Models Starting With U1 Or S7.
Comes With 16 Genuine Miele U Airclean FilterBags, 1 Genuine Miele HEPA Air Clean Filter AH-30 and 4 Pre-Motor Protection Filters.
The Miele U Airclean Dustbag Has a Hygiene Shutter Built-In to Prevent Dirt and Debris from Re-Entering Your House. The Hygiene Shutter is Spring-Loaded so as Soon as You Open the Machine the Shutter Will Close Not Allowing Any Dirt to Escape. The Collar of the Bag Also Contains a Rubber Seal to Ensure All of the Dirt Picked Up is Contained within the Bag.
The HEPA Filter Actually Traps 99.99% of all Particles as Small as 0.3 of a Micron. Dust Mite Feces and Pollen are No Match for the Miele HEPA Filter!.

【Material】The 4 inch backdraft damper is made out of a Galvanized steel, the flap leaves are made of aluminum, while the Axis and spring are made of stainless steel..
【Installation】The backdraft damper is installed by pushing it into the ventilation pipe as far as it will go. The position of the spring should be horizontal when the flap is installed horizontally so that it can be opened and closed optimally. This also applies to the vertical installation..
【Function】This airflow regulating backdraft shutter fits over the TD lip and is designed to improve ventilation by preventing air from re-circulating when the fans are not in use..
【Wide Application】 These backdraft dampers can be widely used in ACs, exhaust fans, extractors, range hoods, heating ducts, vents and other residential, commercial and industrial applications..
【Note】Back draught valves can be inserted into ventilation ducts which are flexible or non flexible. Cannot be used with plastic ducts as the sizes are different..

This Performance Pack Fits These Models ONLY: – The Miele S400i Series – The Miele S600 Series – The Miele S2000 (S2) Series – The Miele Classic C1 Series.
Comes With 16 Genuine Miele GN Airclean FilterBags, 1 Genuine Miele HEPA Air Clean Filter AH-30 and 4 Pre-Motor Protection Filters.
The Miele GN Airclean Dustbag Has a Hygiene Shutter Built-In to Prevent Dirt and Debris from Re-Entering Your House. The Hygiene Shutter is Spring-Loaded so as Soon as You Open the Machine the Shutter Will Close Not Allowing Any Dirt to Escape. The Collar of the Bag Also Contains a Rubber Seal to Ensure All of the Dirt Picked Up is Contained within the Bag.
The HEPA Filter Actually Traps 99.99% of all Particles as Small as 0.3 of a Micron. Dust Mite Feces and Pollen are No Match for the Miele HEPA Filter!.