• 3 ft (91 cm) or 5.25 ft (162 cm) Single or double butterfly motorized vents with or without manual or override or just manual.
• Insect screen Vents for Peak
  houses.
• Vents for special situations such as Ventsetter type or Econo Grower.
• Ridge Roof Vents for structured sheets or glass, arch peak type. Single or Double (butterfly) vents available.
• Heavy rack and pinion drive system.
• Specially designed drive motor can be connected to any controller. 36 inch to 54 inch single and double butterfly vent opening. Over-sized vents superior for maximum ventilation.

ROOF/RIDGE VENTS FOR POLY COVERED HOUSES AVAILABLE ON SOME STRUCTURES

• 48 INCH OPENING
• Not recommended for many greenhouses structures or design
• Very design specific