Greenhouse Sidewall Ventilation Crank DIY Greenhouse Kit inlet damper/air regulator

inlet damper/air regulator

Kill weeds without disturbing your soil

or flowers in tight spaces

Features/Benefits:

Greenhouse Sidewall Ventilation Crank DIY Greenhouse Kit inlet damper/air regulatorVentilate 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