Tip for opening vent. If the vent falls through once it is installed, undue the nuts slightly on the coss
section and move up slightly until the bottom of the opening vent catches the centre cross member
to prevent the opening vent from falling through into the greenhouse.
Cross Member which can be moved into position
once the opening vent has been installed
Please make sure the cross member is correctly situated.
From the inside the groves should be at the top. This allows for the positioning of the window stay when
the window is open.