This is also for the older 4030 units with larger dispharam

Posted by Scott on 15th Feb 2021

I initially purchased one of the DK4000 but when it arrived it was less then half the size of the diaphragm in my 4030 . I gave a call and they confirmed that the older units use the same diaphragm as the larger ones which need a 2.5" diaphragm so I was pointed to the DK6000. This was a perfect fit . These don't go two often and toy can usually clean them up to get them working again but they are cheap enough so pick up a couple fore the future