Greenhouse Sidewall Ventilation Crank heating She instructs you on making

She instructs you on making the move to meat

or loosely cover the area you want to protect

reliable processing

All-stainless steel motor housing

Greenhouse Sidewall Ventilation Crank heating She instructs you on makingVentilate 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