The WD-100 series are horizontally mounted backdraft dampers designed to allow vertical airflow up and prevent reverse airflow. The dampers are opened by air pressure differential (assisted by springs) and closed by gravity. The damper features a flangeless, galvanized steel frame and aluminum blades.

40b00300usFirmware

Model GPF roof curbs are designed for high wind applications and flat roof installations. Constructed of heavy gauge galvanized steel and fully formed on three sides with a single, fully welded seam.

The delivery estimates we provide are based on various factors, including the availability of products at our warehouses, the order time, delivery destination and whether the items need freight shipping. Delivery durations may extend beyond our initial estimate in certain cases such as:

40b00300usmanual

40b00300usvs 40B00135US

GPI roof curbs are designed for flat, insulated or non-insulated roof decks. Constructed of 18 gauge galvanized steel and fully formed on three sides with a single, fully welded seam.

The BD-100 is a horizontal mount backdraft damper designed to allow vertical airflow up and prevent reverse airflow. The dampers are opened by air pressure differential (assisted by springs) and closed by gravity. The damper features a flangeless, galvanized steel frame with aluminum blades.

40b00300usreview

Model GPF roof curbs are designed for high wind applications and flat roof installations. Constructed of heavy gauge galvanized steel and fully formed on three sides with a single, fully welded seam.

It's important to note that CleanItSupply.com cannot provide exact delivery dates. Additionally, our transit times exclude weekends and deliveries are only made on weekdays.

40B00300USCompatibility

Complies with the International Energy Conservation Code (IECC) and ASHRAE 90.1 leakage requirements for non-motorized dampersAMCA certified for Air Leakage and Air PerformanceWidth and height furnished approximately 0.125 in. under size

For bulk orders shipped directly from the manufacturer, a longer processing time is required, and these orders are not dispatched on the same day. Please expect a delay of several days before receiving your tracking information by email.

GPI roof curbs are designed for flat, insulated or non-insulated roof decks. Constructed of 18 gauge galvanized steel and fully formed on three sides with a single, fully welded seam.

40b00300usDrivers

For natural gravity or positive pressure systems, model GRS offers excellent performance and durability for intake or relief applications. Featuring an exceptional low silhouette design and rugged construction this model is both efficient and economical.

19 x 19 inch base with prepunched mounting holes for easy attachment to roof curbAll aluminum exterior for corrosion-resistant constructionIntegral birdscreen to prevent entry of birds and small objects

19 x 19 inch base with prepunched mounting holes for easy attachment to roof curbAll aluminum exterior for corrosion-resistant constructionIntegral birdscreen to prevent entry of birds and small objects

GPI roof curbs are designed for flat, insulated or non-insulated roof decks. Constructed of 18 gauge galvanized steel and fully formed on three sides with a single, fully welded seam.