*Replacement Gigavent piston only. Does not include hardware or hinge mechanism.
The automatic vent openers are heat activated and they require no electricity to operate. Proper air circulation and ventilation is imperative to grow high quality produce year-round. A bent, broken, or worn out vent opener can invite pests and disease; always check to ensure that your vents are opening and closing properly. Often, a malfunctioning opener can be brought back to life by replacing the pistons. We can help you diagnose the cause of failure if your vents are not opening.
Opens between 56 and 70 degrees Fahrenheit. Maximum opening at 90 degrees Fahrenheit. Maximum window opening of 18 inches.
18' Dome: Upper vent
26' Dome: Both pper vents