Description
Self-Locking Gear Cranks are a safe, easy, manual drive for roll up
walls up to 110'. The output shaft moves 1
revolution for every 5 cranks. Specify roll up tube size (1",
1-1/4",1-5/16" or 1 3/8").
Installation hardware sold separately, product code: VEC-GL.
Specific to LEFT SIDE of greenhouse (when facing the building), also available in right side.
Can also be applied to the Agricultural Trade for Ag Curtain Venting systems.