These diaphragms are better than the original. a lot thicker and work great. The packaging was very good, the best I've ever seen ! bubble wrapped and placed into a bubble wrapped envelope. I was so impressed. Be careful not to pinch the edges when you install. i used a vacuum cleaner on the intake port which sucked down diaphragm, ran my finger over to perfectly seat. then put the top on. crazy method i know.. but all works great. hope this helps.