4" BACKDRAFT DAMPERMade of galvanized steel, these dampers prevent air leakage into your fan setup. They are easy to install, fit directly onto the ducting, and prevent a backdraft of air when the fans are switched off.

Developed by Hop Breeding Company and released in 2012

SUPERthrive® now includes kelp

Come in packs labeled with instructions

outdoor ornamentals

Strong root networks are linked to larger

vigor and optimum plant development

From seed or clone until harvest

Ideal-Air™ Fan Speed ControllerWorks with AC/DC brush-type motors 15 Amps or less

Superior results compared to any other rooting product

Clonex® has a full spectrum of mineral nutrients and trace elements to nourish the young roots during their important formative stages

The Grower's Edge® Soft Mesh Trellis Netting is soft

including all in-house packaged hops