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Ships within 48 hours · Estimated delivery Aug 29 - Sep 3
The SuperDosTM can operate at pressures up to 100psi
both extended film life and reduced maintenance of covers can be expected
An adjustable flow
The Schaefer WI-1000P Outside Wall Air Intake's modular design is constructed of molded white polyethylene
Schaefer Shutter Fans Flat Hose The SuperDosTM can operate atDescription Specs FAQs The Schaefer Shutters Fans are equipped with louvers to keep the heat where it belongs: in your greenhouse. If you're having trouble keeping the hot air in your greenhouse during cold months, then you need a shutter fan. Shutter intakes are placed on the opposite end of the greenhouse. They are motorized to prevent the wind from opening them when ventilation is not necessary. For added protection against greenhouse humidity,
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