Our 4 inch Premium Back Draft Damper is a non-mechanical in-line one way air flow valve that is specifically designed to stop backdrafts from your clothes
Our 4 inch Premium Back Draft Damper is a non-mechanical in-line one way air flow valve that is specifically designed to stop backdrafts from your clothes dryer, bathroom exhaust fan, and kitchen exhaust fan.
It requires minimal pressure to operate, has no moving parts and has been successfully tested to ASTM E84, UL 723 and NFPA 255 standards.
Get the full force of your fan with this non-restrictive damper which fits snugly inside the duct.
5 sizes available: 4, 5, 6, 7, and 8 in. sizes!
Our Premium Back Draft Damper is the ultimate one way air flow valve, designed to overcome the inefficiencies and limitations of traditional gravity or butterfly dampers.
The damper consists of a specially formulated fabric sleeve attached to an outer metal sleeve.
The fabric sleeve will allow air to pass through in the desired direction of flow with miniscule reduction in airflow.
Our Premium Back Draft Damper is the best damper available. It is superior in that it allows unrestricted airflow in the desired direction without reducing system efficiency. It is silent, produces no metal clanging sounds, tested to ASTM E84, UL723 and NFPA 255 standards, and can be installed at any angle in horizontal or vertical ductwork.
Tested to ASTM E84, UL723 and NFPA 255 standards for flame resistance.
Installs easily - simply slide into duct.
4 inch damper is 3-7/8 inch O.D. and 5-1/8 inch long.
Contemporary Writing DesksBaseboards Trim ContemporaryExterior Columns Front Door ContemporaryKraus Waterfall FaucetsSherwin Williams Sw 0075 Holiday Turquoise Contemporary
Tags: Back Draft Damper, For Exhaust Ducts,
⭐️⭐️⭐️⭐️⭐️ Shop for Low Price Back Draft Damper For Exhaust Ducts, 4" .Compare Price and Options of Back Draft Damper For Exhaust Ducts, 4" from variety stores in usa. products sale.