Greenheck will be closed Friday, July 4th in observance of the Independence Day holiday. Order shipments will resume on Monday, July 7th. 

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Shipping Type Order By
Standard Ground Small Parcel
FREE - On orders over $25 View Transit Map 		7:00 PM CST
Next Day Air
(Calculated at checkout) 		3:00 PM CST
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FREE - On orders over $25 		1:00 PM CST
  • Shipping cutoff times apply to in-stock items. Please note item lead-times when placing your order.
  • Orders placed on weekends or holidays will be processed the next business day.
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    • Product # WD-330

    Vertical mount backdraft damper, No Flange, Model WD-330

    Greenheck Product # WD-330
    Model WD is a backdraft damper used in ventilation systems, allowing airflow in one direction and preventing airflow in the opposite direction.Rated for duct velocities up to 2,500 ft/min.Horizontal and vertical mounting options.

    Product Variants

    Showing 14 of 14
    SKU DESCRIPTION PRICE LEAD TIME
    WD330-8X8
    Model: WD
    Model / Size: WD-330
    		Backdraft Damper, Vertical Mount, Product # WD330-8X8 $121.00
    In stock 
    7 on Hand

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    WD330-9X9
    Model: WD
    Model / Size: WD-330
    		Backdraft Damper, Vertical Mount, Product # WD330-9X9 $131.00
    15 Days
    Lead Time 

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    WD330-10X10
    Model: WD
    Model / Size: WD-330
    		Backdraft Damper, Vertical Mount, Product # WD330-10X10 $123.00
    In stock 
    2 on Hand

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    WD330-12X12
    Model: WD
    Model / Size: WD-330
    		Backdraft Damper, Vertical Mount, Product # WD330-12X12 $131.00
    15 Days
    Lead Time 

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    WD330-14X14
    Model: WD
    Model / Size: WD-330
    		Backdraft Damper, Vertical Mount, Product # WD330-14X14 $155.00
    15 Days
    Lead Time 

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    WD330-16X16
    Model: WD
    Model / Size: WD-330
    		Backdraft Damper, Vertical Mount, Product # WD330-16X16 $155.00
    In stock 
    4 on Hand

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    WD330-18X18
    Model: WD
    Model / Size: WD-330
    		Backdraft Damper, Vertical Mount, Product # WD330-18X18 $192.00
    In stock 
    13 on Hand

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    WD330-20X20
    Model: WD
    Model / Size: WD-330
    		Backdraft Damper, Vertical Mount, Product # WD330-20X20 $192.00
    15 Days
    Lead Time 

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    WD330-23X23
    Model: WD
    Model / Size: WD-330
    		Backdraft Damper, Vertical Mount, Product # WD330-23X23 $233.00
    15 Days
    Lead Time 

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    WD330-24X24
    Model: WD
    Model / Size: WD-330
    		Backdraft Damper, Vertical Mount, Product # WD330-24X24 $233.00
    15 Days
    Lead Time 

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    WD330-35X35
    Model: WD
    Model / Size: WD-330
    		Backdraft Damper, Vertical Mount, Product # WD330-35X35 $360.00
    15 Days
    Lead Time 

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    WD330-10x6
    Model: WD
    Model / Size: WD-330
    		Backdraft Damper, Vertical Mount, Product # WD330-10x6 $126.00
    In stock 

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    WD330-6x6
    Model: WD
    Model / Size: WD-330
    		Backdraft Damper, Vertical Mount, Product # WD330-6x6 $125.00
    In stock 

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    WD330-48X48
    Model: WD
    Model / Size: WD-330
    		Backdraft Damper, Vertical Mount, Product # WD330-48X48 $608.00
    15 Days
    Lead Time 

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