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greenhouse vent, greenhouse shutter
Aluminium Shutter, 30"
Price: $333.00

Brushed aluminium,  Canadian-made!  Automate with shutter motors (requires a thermostat or other controller - not included ) or VEL thermal opener.
rough opening: 30 1/4" wide X 30 1/4"
more info
light trap
Light Trap - 21"
Price: $149.00

Provide air exchanges while excluding light.

21" x 21" x 9-3/4" depth. American made. Excellent performance.

Easily assembled. Frame not included.

Please call for other sizes.
more info
light trap
Light Trap - 24"
Price: $185.00

Provide air exchanges while excluding light.

24" x 24" x 9-3/4" depth. American made. Excellent performance.

Easily assembled. Frame not included.

Please call for other sizes.
more info
Line Voltage Thermostat for Damp Conditions
Line Voltage Thermostat for Damp Conditions
Price: $98.00

TP508 Line Voltage Thermostat is designed for reliable use in both heating and cooling applications.
Use with Model VEC-TI roll up motor controller; to open a motorized shutter; or to run a fan and open a motorized shutter(s). NEMA 4 enclosure for damp conditions.
more info
greenhouse vent, greenhouse shutter
Motor for Aluminium Shutter
Price: $298.00

Automate any shutter up to 48"
more info