Greenhouse Aluminum Shutter Size:36 in. 05% Chelated Zinc

05% Chelated Zinc

Foliar Spray Mix 1/2 tsp

Multi-Purpose Utility: Use as an excellent container for cultivating wheatgrass

You can also choose the key side placement

Based on a 12" Fan

Greenhouse Aluminum Shutter Size:36 in. 05% Chelated ZincThis shutter can be motorized to be used as outside air intake or free air exhaust when connected to a controller. Outdoor air is drawn in through this motorized shutter and hot air is exhausted through a motorized shutter fan. Can also be used as exhaust shutter with an evaporative cooler. Standard Features High efficiency shutter with tie bar to eliminate shutter flapping Shutter only Nylons bearings; solid shafts; drawn cup type sleeves on all