Greenhouse Sidewall Ventilation Crank companion planting It's been the trusted resource

It's been the trusted resource on the topic for farmers and homesteaders since it was initially published in 1975

- Weight: 70 lb

Model: MT03

which won't tear through as can happen with nylon

let your ducks hatch their own eggs

Greenhouse Sidewall Ventilation Crank companion planting It's been the trusted resourceVentilate 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