Greenhouse Aluminum Intake Shutter Size:12" The 50 cell tray insert

The 50 cell tray insert provides 1¾ square inches of growing room per cell

(It may take an additional week to arrive if freight shipment is required

Note: If your hoop house is in between these lengths

while high-performance limit switches deliver smooth and dependable operation for larger setups

Not a Complete Kit

Greenhouse Aluminum Intake Shutter Size:12" The 50 cell tray insertFresh Air Intake for Greenhouse or Hoop House Bring outside air into your greenhouse with this intake shutter. Aluminum shutters open with negative pressure as outdoor air is drawn in through the shutter, and hot air is exhausted through a motorized shutter fan on opposite sides of the hoop house. This shutter is designed for easy installation with spring wire and lock channel and this hardware kit. Check out this article on greenhouse ventilation to