The Janssens Spindle Opener for Roof Window is an optional addition to your Roof window in your Janssens greenhouse.  This is a manual opener that works like a large threaded screw - for Royal or Junior Victorians.  Very strong and heavy duty - good for high wind areas - long handle NOT included.  If you already have a spindle opener, you should already have the handle.  If not, you can order the Long Handle for Spindle Opener here.

WARRANTY

15 Year Limited Warranty