Greenhouse Sidewall Ventilation Crank Photos Order now and give your

Order now and give your chicks the best start in life with a reliable

produce more

Structural Support - We recommend that you set a truss on every other hoop

and out comes the cheese plate … and yes

Greenhouse Sidewall Ventilation Crank Photos Order now and give yourVentilate 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