Automatic Roof Window Opener for Grandio Ascent What method of shipping do

What method of shipping do you use

offering enhanced stability and protection against severe weather

Accessorize your Canopia Natura Cedar Greenhouse with this shelf kit to make your nursery as functional as possible

3/4" Adapter

Base Extention

Automatic Roof Window Opener for Grandio Ascent What method of shipping doDESCRIPTION Automatically opens and closes the roof vent window when temperature changes. The opener has a metal cylinder containing a mineral which expands when heated. This pushes a piston that opens the vent. As the temperature cools, the mineral shrinks and a spring closes the vent and resets the piston. The opening and closing of the vent is gradual allowing just the right amount of air flow for cooling. SKU: AUTO ROOF SPEC Weight: 1. 0 LB