Greenhouse Manual Sidewall Film Reeler (Hand Crank) retention roll The Quonset frame types are

The Quonset frame types are the least visually intrusive frame type

If you don’t see an option for your greenhouse

Cultiwool Blocks have an optimum air/water ratio for healthy root growth and allow for great continued rooting thanks to the extremely even distribution of water and EC

Typhoon fans include an aluminum shutter with a tie bar and galvanized shutter clips to hold the shutter tight to the frame for less vibration (these models do not have a "cone")

Installing yourself is highly not recommended and will void your warranty

Greenhouse Manual Sidewall Film Reeler (Hand Crank) retention roll The Quonset frame types 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.