Greenhouse Manual Sidewall Film Reeler (Hand Crank) grow room circulation 30'x120' Quonset greenhouse frames are

30'x120' Quonset greenhouse frames are also known as “high tunnel greenhouses

suction hose

relays & contactors

condensation droplets form more dramatically and have a number of undesirable effects

Greenhouse Manual Sidewall Film Reeler (Hand Crank) grow room circulation 30'x120' Quonset greenhouse frames areHand cranks are used for manually pulling greenhouse sidewall curtains. If you have a smaller greenhouse that does not use automation, you can use hand cranks to pull your curtains and save on electricity costs. Hand cranks fit standard with a 1 3 8" pipe. You will need a side wall guide pipe (HTD SWRGP) for the reeler to roll up and down during operation.