Semi-Gable 20'x20' Manual External Light Dep Kit

The 20' Manual External Light Deprivation Kit is complete and ready to go. Kit includes a 1 7/8" x 2 3/8" frame with your choice of truss spacing. Passive ventilation system includes roll-up sides with handles to cool and ventilate the greenhouse. Woven membranes with a 4 year warranty insures protection from the elements. A manual light deprivation package makes controlling the light cycle effortless with 2 5:1 ratio chain cranks. Includes all necessary accessories for all core functions. Lumber and cement to be purchased separately.