HEY GUYS NEVER MIND WHAT THE OTHER GUYS ARE SAYING ABOUT THE CONVERSION KIT AND THE AC SUPPORT PIECES THAT THE OTHER GUYS ARE TALKING ABOUT. THAT STUFF GET REALLY EXPENSIV. ALL YOU NEED IS ABOUT $1 FOR A SLIDING WINDOW LOCK. AND MAYBE ABOUT $20 FOR A SHEET OF THIN SHEET PLEXIGLASS. FOR THE PORTION ABOVE THE A/C. USUALLY THE A/C WILL COM WITH PIECES THAT SLIDE LEFT AND RIGHT ON EITHER SIDE OF THE A/C (WE'LL CALL THESE LEFT AND RIGHT ACCORDIANS)TO CLOSE THE GAP THE OTHER TYPES OF WINDOWS. USE THESE AS SUPPORTS. YOU WILL NEED TWO PEOPLE DOING THIS. ONE PERSON WILL HOLD THE A/C AT ALL TIMES UNTILL A/C IS SECURELY LOCKED IN PLACE. LET'S SAY YOUR WINDOW CLOSES FORM LEFT TO RIGHT... NOW PLACE YOUR A/C ALL THE WAY TO THE RIGHT SO THAT THE RIGHT ACCORDIAN IS UP AGAINST THE WALL AND PUSHED UP AGAINST THE FRAME OF THE WINDOW. NOW FROM LEFT TO RIGHT SLIDE THE PIECE IF CUSTOM CUT PLEXIGLASS ABOVE THE A/C AND IN THE WINDOW FRAME. SLIDE THE WINDOW TO THE RIGHT FIRMLY UP AGAINST AND BEHIND THE LEFT ACCORDIAN. NOW ON THE LEFT HAND SIDE OF THE SLIDING WINDOW PLACE AND SCREW TIGHTLY THE SLIDING WINDOW LOCK IN PLACE. NOW THE A/C SHOULD BE FIRMLY IN PLACE. INSERT THE SPONGY INSLUATION STRIPS WHERE NEEDED. ENJOY!!!