Kason 1095 Spring Action Door Closer Operates by direct force adding to natural swing momentum of closing door; rubber roller ensures quiet operation Designed to overcome slowing action of gaskets and air pressure; provides fast, full closure for heavy walk-in doors Easy installation; simply snaps onto concealed mounting plate Simple spring mechanism gives long, trouble-free life and solid steel housing and bend-resistant hook assure long wear in heavy use Ideal complement for Kason Walk-in door hardware to provide self-closing doors