Dr. Greenthumbs Hydroponics | The #1 trusted source for new and used hydroponic equipment

Made of galvanized steel. Prevents reverse air flow when fans are shut off. Saves CO2 and prevents odors from flowing backwards. Rubber gasket pre-installed on exterior for an air tight seal.

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18.886

Regular Price:	~~$ 29.95~~

Sale Price:	$ 18.18
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403010 - 10" Backdraft Damper

Made of galvanized steel. Prevents reverse air flow when fans are shut off. Saves CO2 and prevents odors from flowing backwards. Rubber gasket pre-installed on exterior for an air tight seal.

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22.05

Regular Price:	~~$ 39.95~~

Sale Price:	$ 21.22
You Save:	$ 18.73

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403012 - 12" Backdraft Damper

Made of galvanized steel. Prevents reverse air flow when fans are shut off. Saves CO2 and prevents odors from flowing backwards. Rubber gasket pre-installed on exterior for an air tight seal.

Note:

25.886

Regular Price:	~~$ 49.95~~

Sale Price:	$ 24.91
You Save:	$ 25.04

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401006 - 6" Straight Duct Connector

Made of galvanized steel these connectors have pre-installed exterior rubber gaskets for a perfect, airtight fit.

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3.136

Regular Price:	~~$ 4.50~~

Sale Price:	$ 3.02
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401008 - 8" Straight Duct Connector

Made of galvanized steel these connectors have pre-installed exterior rubber gaskets for a perfect, airtight fit.

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4.326

Regular Price:	~~$ 6.00~~

Sale Price:	$ 4.17
You Save:	$ 1.83

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401010 - 10" Straight Duct Connector

Made of galvanized steel these connectors have pre-installed exterior rubber gaskets for a perfect, airtight fit.

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5.306

Regular Price:	~~$ 7.50~~

Sale Price:	$ 5.11
You Save:	$ 2.39

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407004 - 4" Elbow

Made of galvanized steel. Stronger than adjustable elbows. Solid construction to prevent air leaks.

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10.486

Regular Price:	~~$ 15.95~~

Sale Price:	$ 10.09
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407006 - 6" Elbow

Made of galvanized steel. Stronger than adjustable elbows. Solid construction to prevent air leaks.

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12.922

Regular Price:	~~$ 18.95~~

Sale Price:	$ 12.44
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407008 - 8" Elbow

Made of galvanized steel. Stronger than adjustable elbows. Solid construction to prevent air leaks.

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22.26

Regular Price:	~~$ 29.95~~

Sale Price:	$ 21.42
You Save:	$ 8.53

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407010 - 10" Elbow

Made of galvanized steel. Stronger than adjustable elbows. Solid construction to prevent air leaks.

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26.586

Regular Price:	~~$ 39.95~~

Sale Price:	$ 25.58
You Save:	$ 14.37

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405106 - 6" Noice Reduction

Perfect to use with fans, carbon filters, and ducting. 2.5� wide . Neoprene lining on the inner part of the clamp. Creates an air tight seal and prevents vibrations. Price is per piece.

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3.486

Regular Price:	~~$ 4.99~~

Sale Price:	$ 3.36
You Save:	$ 1.63

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405108 - 8" Noice Reduction

Perfect to use with fans, carbon filters, and ducting. 2.5� wide . Neoprene lining on the inner part of the clamp. Creates an air tight seal and prevents vibrations. Price is per piece.

Note:

4.186

Regular Price:	~~$ 5.49~~

Sale Price:	$ 4.03
You Save:	$ 1.46

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