After 15 months of waiting for the Mach 8 Hush Kit I have been informed that I will probably never see it. Apparently the fellow who makes these for Perfect Casita is not responding to the many requests for this product. The response I received was to buy a new A/C unit. Well, that's not going to happen! Does anyone have a kit for sale or know of anyone else building these devices? I did purchase the new "D" style blade and this made a big difference.
It seems like a pretty simple device to replicate if you are electronically inclined. There is probably some good money to be made considering the demand based on the comments from the lady I spoke with this morning at Orbital Machine Works. She says it is a hot item on the Perfect Casita forum.
Bummer that's it's no longer available. It's a great mod and makes a huge difference in the outside noise level. It was an easy install, with what looked like off the shelf parts.