Greenhouse Sidewall Ventilation Crank All-Natural Skincare Fulfilled by our friends at

Fulfilled by our friends at Your Only Earth

Whether you’re applying fertilizers

even when it's freezing outside

it may sag and twist vs

(2) Elbows

Greenhouse Sidewall Ventilation Crank All-Natural Skincare Fulfilled by our friends atVentilate 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