Greenhouse Sidewall Ventilation Crank greenhouse supplies Eliminates the need for disposable

Eliminates the need for disposable trellising materials

This system is designed for repeat use year after year

User-Friendly: Pneumatic tires and handles for easy maneuvering and loading

We offer a starter pack bundle that includes 4 of the most common rollers used

Corrosion-resistant to withstand various weather conditions

Greenhouse Sidewall Ventilation Crank greenhouse supplies Eliminates the need for disposableVentilate your greenhouse with our side wall ventilation hand crank. Easily vent your roll up curtain sidewalls up to 150 feet long! Features Stainless steel handle, full plastic resin casing for long anti corrosion time The 4: 1 Gear ratio provides easy cranking Self Locking and automatic brake holds sidewall in place The drive shaft fits perfectly inside " EMT conduit. Attachment screws included " EMT conduit guide post not included but easily found