Poly-Vent® is an innovative alternative to inefficient and cumbersome roll-up vents. Heavy-duty, clear, UV-stabilized polyethylene opens from the top down without any moving parts except for small blowers. It can be thermostatically controlled and acts as an insulator with six inches of dead air
Poly-Vent® is an innovative alternative to inefficient and cumbersome roll-up vents. Heavy-duty, clear, UV-stabilized polyethylene opens from the top down without any moving parts except for small blowers. It can be thermostatically controlled and acts as an insulator with six inches of dead air space when inflated. Poly-Vent provides an energy efficient, airtight seal the full length of the vent opening. Start giving your plants all the fresh air they need. Poly-Vent® III is a two-stage system that can open partially, allowing some natural air, or can open fully allowing total ventilation. This system works with an optional two-stage thermostat.
Use as side wall vents on all types of greenhouses.
Has no moving parts except small blower.
Opens from top down eliminating cold air dump on plants.
Use as upper vents on sawtooth greenhouses.
Full-open position admits maximum light.
Insulates as it seals.
The frame can be easily retrofitted to existing structures and is available in 36", 48" or 60" heights. Stacking systems are available for taller sidewalls.
How it Works
Two long-lasting squirrel-cage blowers inflate a 3ft to 5ft high series of poly-tubes to create an airtight wall. When the greenhouse gets too warm, an optional thermostat opens the poly wall for natural ventilation. The blowers operate the ventilator regardless of length.
(1) Poly Vent End Package is required for each unconnected run of Poly-Vent. Poly Vent End Package Includes:
Blower to inflate Poly-Vent walls
3-inch diameter flex tubes
Air transfer gaskets
Note: On all Poly-Vent System purchases, an additional $30 charge will be added at the manufacturer to cut and seal both ends. This will be a separate charge and will not be shown on your total checkout price. This will be in addition to your checkout total.
This product ships via Motor Freight Carrier.
Motor Freight Agreement
Full Size Semi: Your location must be able to accommodate a full size semi-truck trailer of up to 70ft. in length.
Someone Must Be Present: You or someone else authorized must be present to unload the shipment. Exact delivery date will be arranged via phone by freight company.