Ideal-Air Back Draft Dampers Size:Ideal-Air Back Draft Damper 6 in (64/Cs) Featuring coco chips (croutons) to

Featuring coco chips (croutons) to balance aeration with lingering water retention

helps your plants get the most benefit from photosynthesis

conductivity and temperature levels in reservoirs

The EcoPlus® Elite series Multistage Pumps are perfect for supplying water to domestic

This portable fan runs very quietly and effectively

Ideal-Air Back Draft Dampers Size:Ideal-Air Back Draft Damper 6 in (64/Cs) Featuring coco chips (croutons) toThese are excellent quality back draft dampers. They are made from heavy gauge galvanized steel with heavy duty springs. They use both an embossed bead and rubber gasket to help keep ducting securely in place. They prevent back draft air when your fans are off.